diff options
Diffstat (limited to 'arch')
166 files changed, 10094 insertions, 6335 deletions
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig index d98bafcaca59..017defaa525b 100644 --- a/arch/blackfin/Kconfig +++ b/arch/blackfin/Kconfig @@ -71,6 +71,7 @@ config GENERIC_CALIBRATE_DELAY config IRQCHIP_DEMUX_GPIO bool + depends on (BF53x || BF561 || BF54x) default y source "init/Kconfig" @@ -114,6 +115,26 @@ config BF537 help BF537 Processor Support. +config BF542 + bool "BF542" + help + BF542 Processor Support. + +config BF544 + bool "BF544" + help + BF544 Processor Support. + +config BF548 + bool "BF548" + help + BF548 Processor Support. + +config BF549 + bool "BF549" + help + BF549 Processor Support. + config BF561 bool "BF561" help @@ -125,6 +146,11 @@ choice prompt "Silicon Rev" default BF_REV_0_2 if BF537 default BF_REV_0_3 if BF533 + default BF_REV_0_0 if BF549 + +config BF_REV_0_0 + bool "0.0" + depends on (BF549) config BF_REV_0_2 bool "0.2" @@ -150,6 +176,16 @@ config BF_REV_NONE endchoice +config BF53x + bool + depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537) + default y + +config BF54x + bool + depends on (BF542 || BF544 || BF548 || BF549) + default y + config BFIN_DUAL_CORE bool depends on (BF561) @@ -198,6 +234,12 @@ config BFIN537_BLUETECHNIX_CM help CM-BF537 support for EVAL- and DEV-Board. +config BFIN548_EZKIT + bool "BF548-EZKIT" + depends on (BF548 || BF549) + help + BFIN548-EZKIT board Support. + config BFIN561_BLUETECHNIX_CM bool "Bluetechnix CM-BF561" depends on (BF561) @@ -265,6 +307,7 @@ config BFIN_SHARED_FLASH_ENET source "arch/blackfin/mach-bf533/Kconfig" source "arch/blackfin/mach-bf561/Kconfig" source "arch/blackfin/mach-bf537/Kconfig" +source "arch/blackfin/mach-bf548/Kconfig" menu "Board customizations" @@ -497,7 +540,8 @@ config IP_CHECKSUM_L1 config CACHELINE_ALIGNED_L1 bool "Locate cacheline_aligned data to L1 Data Memory" - default y + default y if !BF54x + default n if BF54x depends on !BF531 help If enabled cacheline_anligned data is linked @@ -541,9 +585,17 @@ endchoice source "mm/Kconfig" +config LARGE_ALLOCS + bool "Allow allocating large blocks (> 1MB) of memory" + help + Allow the slab memory allocator to keep chains for very large + memory sizes - upto 32MB. You may need this if your system has + a lot of RAM, and you need to able to allocate very large + contiguous chunks. If unsure, say N. + config BFIN_DMA_5XX bool "Enable DMA Support" - depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561) + depends on (BF533 || BF532 || BF531 || BF537 || BF536 || BF534 || BF561 || BF54x) default y help DMA driver for BF5xx. @@ -686,6 +738,7 @@ config C_AMCKEN config C_CDPRIO bool "DMA has priority over core for ext. accesses" + depends on !BF54x default n config C_B0PEN @@ -839,7 +892,7 @@ endchoice endmenu -if (BF537 || BF533) +if (BF537 || BF533 || BF54x) menu "CPU Frequency scaling" diff --git a/arch/blackfin/Makefile b/arch/blackfin/Makefile index 6971a4418dfe..1b75672dfc8f 100644 --- a/arch/blackfin/Makefile +++ b/arch/blackfin/Makefile @@ -24,6 +24,8 @@ machine-$(CONFIG_BF533) := bf533 machine-$(CONFIG_BF534) := bf537 machine-$(CONFIG_BF536) := bf537 machine-$(CONFIG_BF537) := bf537 +machine-$(CONFIG_BF548) := bf548 +machine-$(CONFIG_BF549) := bf548 machine-$(CONFIG_BF561) := bf561 MACHINE := $(machine-y) export MACHINE diff --git a/arch/blackfin/boot/Makefile b/arch/blackfin/boot/Makefile index 49e8098d4c21..8cd33560e817 100644 --- a/arch/blackfin/boot/Makefile +++ b/arch/blackfin/boot/Makefile @@ -13,7 +13,8 @@ extra-y += vmlinux.bin vmlinux.gz quiet_cmd_uimage = UIMAGE $@ cmd_uimage = $(CONFIG_SHELL) $(MKIMAGE) -A $(ARCH) -O linux -T kernel \ - -C gzip -a $(CONFIG_BOOT_LOAD) -e $(CONFIG_BOOT_LOAD) -n 'Linux-$(KERNELRELEASE)' \ + -C gzip -n 'Linux-$(KERNELRELEASE)' -a $(CONFIG_BOOT_LOAD) \ + -e $(shell $(NM) vmlinux | awk '$$NF == "__start" {print $$1}') \ -d $< $@ $(obj)/vmlinux.bin: vmlinux FORCE diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig new file mode 100644 index 000000000000..ac8390fafa9c --- /dev/null +++ b/arch/blackfin/configs/BF548-EZKIT_defconfig @@ -0,0 +1,1100 @@ +# +# Automatically generated make config: don't edit +# Linux kernel version: 2.6.21.5 +# +# CONFIG_MMU is not set +# CONFIG_FPU is not set +CONFIG_RWSEM_GENERIC_SPINLOCK=y +# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set +CONFIG_BLACKFIN=y +CONFIG_ZONE_DMA=y +CONFIG_BFIN=y +CONFIG_SEMAPHORE_SLEEPERS=y +CONFIG_GENERIC_FIND_NEXT_BIT=y +CONFIG_GENERIC_HWEIGHT=y +CONFIG_GENERIC_HARDIRQS=y +CONFIG_GENERIC_IRQ_PROBE=y +# CONFIG_GENERIC_TIME is not set +CONFIG_GENERIC_CALIBRATE_DELAY=y +CONFIG_FORCE_MAX_ZONEORDER=14 +CONFIG_IRQCHIP_DEMUX_GPIO=y +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" + +# +# Code maturity level options +# +CONFIG_EXPERIMENTAL=y +CONFIG_BROKEN_ON_SMP=y +CONFIG_INIT_ENV_ARG_LIMIT=32 + +# +# General setup +# +CONFIG_LOCALVERSION="" +CONFIG_LOCALVERSION_AUTO=y +CONFIG_SYSVIPC=y +# CONFIG_IPC_NS is not set +CONFIG_SYSVIPC_SYSCTL=y +# CONFIG_POSIX_MQUEUE is not set +# CONFIG_BSD_PROCESS_ACCT is not set +# CONFIG_TASKSTATS is not set +# CONFIG_UTS_NS is not set +# CONFIG_AUDIT is not set +# CONFIG_IKCONFIG is not set +CONFIG_SYSFS_DEPRECATED=y +# CONFIG_RELAY is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="" +# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set +CONFIG_SYSCTL=y +CONFIG_EMBEDDED=y +CONFIG_UID16=y +CONFIG_SYSCTL_SYSCALL=y +CONFIG_KALLSYMS=y +# CONFIG_KALLSYMS_ALL is not set +# CONFIG_KALLSYMS_EXTRA_PASS is not set +CONFIG_HOTPLUG=y +CONFIG_PRINTK=y +CONFIG_BUG=y +CONFIG_ELF_CORE=y +CONFIG_BASE_FULL=y +CONFIG_FUTEX=y +CONFIG_BIG_ORDER_ALLOC_NOFAIL_MAGIC=3 +# CONFIG_NP2 is not set +CONFIG_SLAB=y +CONFIG_VM_EVENT_COUNTERS=y +CONFIG_RT_MUTEXES=y +CONFIG_TINY_SHMEM=y +CONFIG_BASE_SMALL=0 +# CONFIG_SLOB is not set + +# +# Loadable module support +# +CONFIG_MODULES=y +CONFIG_MODULE_UNLOAD=y +# CONFIG_MODULE_FORCE_UNLOAD is not set +# CONFIG_MODVERSIONS is not set +# CONFIG_MODULE_SRCVERSION_ALL is not set +CONFIG_KMOD=y + +# +# Block layer +# +CONFIG_BLOCK=y +# CONFIG_LBD is not set +# CONFIG_BLK_DEV_IO_TRACE is not set +# CONFIG_LSF is not set + +# +# IO Schedulers +# +CONFIG_IOSCHED_NOOP=y +CONFIG_IOSCHED_AS=y +# CONFIG_IOSCHED_DEADLINE is not set +CONFIG_IOSCHED_CFQ=y +CONFIG_DEFAULT_AS=y +# CONFIG_DEFAULT_DEADLINE is not set +# CONFIG_DEFAULT_CFQ is not set +# CONFIG_DEFAULT_NOOP is not set +CONFIG_DEFAULT_IOSCHED="anticipatory" +# CONFIG_PREEMPT_NONE is not set +CONFIG_PREEMPT_VOLUNTARY=y +# CONFIG_PREEMPT is not set + +# +# Blackfin Processor Options +# + +# +# Processor and Board Settings +# +# CONFIG_BF531 is not set +# CONFIG_BF532 is not set +# CONFIG_BF533 is not set +# CONFIG_BF534 is not set +# CONFIG_BF536 is not set +# CONFIG_BF537 is not set +# CONFIG_BF542 is not set +# CONFIG_BF544 is not set +# CONFIG_BF548 is not set +CONFIG_BF549=y +# CONFIG_BF561 is not set +CONFIG_BF_REV_0_0=y +# CONFIG_BF_REV_0_2 is not set +# CONFIG_BF_REV_0_3 is not set +# CONFIG_BF_REV_0_4 is not set +# CONFIG_BF_REV_0_5 is not set +# CONFIG_BF_REV_ANY is not set +# CONFIG_BF_REV_NONE is not set +CONFIG_BF54x=y +CONFIG_BFIN_SINGLE_CORE=y +# CONFIG_BFIN533_EZKIT is not set +# CONFIG_BFIN533_STAMP is not set +# CONFIG_BFIN537_STAMP is not set +# CONFIG_BFIN533_BLUETECHNIX_CM is not set +# CONFIG_BFIN537_BLUETECHNIX_CM is not set +CONFIG_BFIN548_EZKIT=y +# CONFIG_BFIN561_BLUETECHNIX_CM is not set +# CONFIG_BFIN561_EZKIT is not set +# CONFIG_BFIN561_TEPLA is not set +# CONFIG_PNAV10 is not set +# CONFIG_GENERIC_BOARD is not set +CONFIG_IRQ_PLL_WAKEUP=7 +CONFIG_IRQ_TIMER0=11 +CONFIG_IRQ_TIMER1=11 +CONFIG_IRQ_TIMER2=11 +CONFIG_IRQ_TIMER3=11 +CONFIG_IRQ_TIMER4=11 +CONFIG_IRQ_TIMER5=11 +CONFIG_IRQ_TIMER6=11 +CONFIG_IRQ_TIMER7=11 +CONFIG_IRQ_TIMER8=11 +CONFIG_IRQ_TIMER9=11 +CONFIG_IRQ_TIMER10=11 +CONFIG_IRQ_RTC=8 +CONFIG_IRQ_SPORT0_RX=9 +CONFIG_IRQ_SPORT0_TX=9 +CONFIG_IRQ_SPORT1_RX=9 +CONFIG_IRQ_SPORT1_TX=9 +CONFIG_IRQ_UART0_RX=10 +CONFIG_IRQ_UART0_TX=10 +CONFIG_IRQ_UART1_RX=10 +CONFIG_IRQ_UART1_TX=10 + +# +# BF548 Specific Configuration +# + +# +# Interrupt Priority Assignment +# + +# +# Priority +# +CONFIG_IRQ_DMAC0_ERR=7 +CONFIG_IRQ_EPPI0_ERR=7 +CONFIG_IRQ_SPORT0_ERR=7 +CONFIG_IRQ_SPORT1_ERR=7 +CONFIG_IRQ_SPI0_ERR=7 +CONFIG_IRQ_UART0_ERR=7 +CONFIG_IRQ_EPPI0=8 +CONFIG_IRQ_SPI0=10 +CONFIG_IRQ_PINT0=12 +CONFIG_IRQ_PINT1=12 +CONFIG_IRQ_MDMAS0=13 +CONFIG_IRQ_MDMAS1=13 +CONFIG_IRQ_WATCHDOG=13 +CONFIG_IRQ_DMAC1_ERR=7 +CONFIG_IRQ_SPORT2_ERR=7 +CONFIG_IRQ_SPORT3_ERR=7 +CONFIG_IRQ_MXVR_DATA=7 +CONFIG_IRQ_SPI1_ERR=7 +CONFIG_IRQ_SPI2_ERR=7 +CONFIG_IRQ_UART1_ERR=7 +CONFIG_IRQ_UART2_ERR=7 +CONFIG_IRQ_CAN0_ERR=7 +CONFIG_IRQ_SPORT2_RX=9 +CONFIG_IRQ_SPORT2_TX=9 +CONFIG_IRQ_SPORT3_RX=9 +CONFIG_IRQ_SPORT3_TX=9 +CONFIG_IRQ_EPPI1=9 +CONFIG_IRQ_EPPI2=9 +CONFIG_IRQ_SPI1=10 +CONFIG_IRQ_SPI2=10 +CONFIG_IRQ_ATAPI_RX=10 +CONFIG_IRQ_ATAPI_TX=10 +CONFIG_IRQ_TWI0=11 +CONFIG_IRQ_TWI1=11 +CONFIG_IRQ_CAN0_RX=11 +CONFIG_IRQ_CAN0_TX=11 +CONFIG_IRQ_MDMAS2=13 +CONFIG_IRQ_MDMAS3=13 +CONFIG_IRQ_MXVR_ERR=11 +CONFIG_IRQ_MXVR_MSG=11 +CONFIG_IRQ_MXVR_PKT=11 +CONFIG_IRQ_EPPI1_ERR=7 +CONFIG_IRQ_EPPI2_ERR=7 +CONFIG_IRQ_UART3_ERR=7 +CONFIG_IRQ_HOST_ERR=7 +CONFIG_IRQ_PIXC_ERR=7 +CONFIG_IRQ_NFC_ERR=7 +CONFIG_IRQ_ATAPI_ERR=7 +CONFIG_IRQ_CAN1_ERR=7 +CONFIG_IRQ_HS_DMA_ERR=7 +CONFIG_IRQ_PIXC_IN0=8 +CONFIG_IRQ_PIXC_IN1=8 +CONFIG_IRQ_PIXC_OUT=8 +CONFIG_IRQ_SDH=8 +CONFIG_IRQ_CNT=8 +CONFIG_IRQ_KEY=8 +CONFIG_IRQ_CAN1_RX=11 +CONFIG_IRQ_CAN1_TX=11 +CONFIG_IRQ_SDH_MASK0=11 +CONFIG_IRQ_SDH_MASK1=11 +CONFIG_IRQ_USB_INT0=11 +CONFIG_IRQ_USB_INT1=11 +CONFIG_IRQ_USB_INT2=11 +CONFIG_IRQ_USB_DMA=11 +CONFIG_IRQ_OTPSEC=11 +CONFIG_IRQ_PINT2=11 +CONFIG_IRQ_PINT3=11 + +# +# Board customizations +# +# CONFIG_CMDLINE_BOOL is not set + +# +# Board Setup +# +CONFIG_CLKIN_HZ=25000000 +CONFIG_MEM_SIZE=64 +CONFIG_MEM_ADD_WIDTH=10 +CONFIG_BOOT_LOAD=0x1000 + +# +# Blackfin Kernel Optimizations +# + +# +# Timer Tick +# +# CONFIG_HZ_100 is not set +CONFIG_HZ_250=y +# CONFIG_HZ_300 is not set +# CONFIG_HZ_1000 is not set +CONFIG_HZ=250 + +# +# Memory Optimizations +# +CONFIG_I_ENTRY_L1=y +CONFIG_EXCPT_IRQ_SYSC_L1=y +CONFIG_DO_IRQ_L1=y +CONFIG_CORE_TIMER_IRQ_L1=y +CONFIG_IDLE_L1=y +CONFIG_SCHEDULE_L1=y +CONFIG_ARITHMETIC_OPS_L1=y +CONFIG_ACCESS_OK_L1=y +CONFIG_MEMSET_L1=y +CONFIG_MEMCPY_L1=y +CONFIG_SYS_BFIN_SPINLOCK_L1=y +# CONFIG_IP_CHECKSUM_L1 is not set +CONFIG_CACHELINE_ALIGNED_L1=y +# CONFIG_SYSCALL_TAB_L1 is not set +# CONFIG_CPLB_SWITCH_TAB_L1 is not set +CONFIG_RAMKERNEL=y +# CONFIG_ROMKERNEL is not set +CONFIG_SELECT_MEMORY_MODEL=y +CONFIG_FLATMEM_MANUAL=y +# CONFIG_DISCONTIGMEM_MANUAL is not set +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y +# CONFIG_SPARSEMEM_STATIC is not set +CONFIG_SPLIT_PTLOCK_CPUS=4 +# CONFIG_RESOURCES_64BIT is not set +CONFIG_ZONE_DMA_FLAG=1 +CONFIG_LARGE_ALLOCS=y +CONFIG_BFIN_DMA_5XX=y +# CONFIG_DMA_UNCACHED_2M is not set +CONFIG_DMA_UNCACHED_1M=y +# CONFIG_DMA_UNCACHED_NONE is not set + +# +# Cache Support +# +CONFIG_BLKFIN_CACHE=y +CONFIG_BLKFIN_DCACHE=y +# CONFIG_BLKFIN_DCACHE_BANKA is not set +# CONFIG_BLKFIN_CACHE_LOCK is not set +# CONFIG_BLKFIN_WB is not set +CONFIG_BLKFIN_WT=y +CONFIG_L1_MAX_PIECE=16 + +# +# Clock Settings +# +# CONFIG_BFIN_KERNEL_CLOCK is not set + +# +# Asynchonous Memory Configuration +# + +# +# EBIU_AMBCTL Global Control +# +CONFIG_C_AMCKEN=y +CONFIG_C_CDPRIO=y +# CONFIG_C_AMBEN is not set +# CONFIG_C_AMBEN_B0 is not set +# CONFIG_C_AMBEN_B0_B1 is not set +# CONFIG_C_AMBEN_B0_B1_B2 is not set +CONFIG_C_AMBEN_ALL=y + +# +# EBIU_AMBCTL Control +# +CONFIG_BANK_0=0x7BB0 +CONFIG_BANK_1=0x7BB0 +CONFIG_BANK_2=0x7BB0 +CONFIG_BANK_3=0x99B3 + +# +# Bus options (PCI, PCMCIA, EISA, MCA, ISA) +# +# CONFIG_PCI is not set + +# +# PCCARD (PCMCIA/CardBus) support +# +# CONFIG_PCCARD is not set + +# +# PCI Hotplug Support +# + +# +# Executable file formats +# +CONFIG_BINFMT_ELF_FDPIC=y +CONFIG_BINFMT_FLAT=y +CONFIG_BINFMT_ZFLAT=y +# CONFIG_BINFMT_SHARED_FLAT is not set +# CONFIG_BINFMT_MISC is not set + +# +# Power management options +# +# CONFIG_PM is not set + +# +# CPU Frequency scaling +# +# CONFIG_CPU_FREQ is not set + +# +# Networking +# +CONFIG_NET=y + +# +# Networking options +# +# CONFIG_NETDEBUG is not set +CONFIG_PACKET=y +# CONFIG_PACKET_MMAP is not set +CONFIG_UNIX=y +CONFIG_XFRM=y +# CONFIG_XFRM_USER is not set +# CONFIG_XFRM_SUB_POLICY is not set +# CONFIG_XFRM_MIGRATE is not set +# CONFIG_NET_KEY is not set +CONFIG_INET=y +# CONFIG_IP_MULTICAST is not set +# CONFIG_IP_ADVANCED_ROUTER is not set +CONFIG_IP_FIB_HASH=y +CONFIG_IP_PNP=y +# CONFIG_IP_PNP_DHCP is not set +# CONFIG_IP_PNP_BOOTP is not set +# CONFIG_IP_PNP_RARP is not set +# CONFIG_NET_IPIP is not set +# CONFIG_NET_IPGRE is not set +# CONFIG_ARPD is not set +CONFIG_SYN_COOKIES=y +# CONFIG_INET_AH is not set +# CONFIG_INET_ESP is not set +# CONFIG_INET_IPCOMP is not set +# CONFIG_INET_XFRM_TUNNEL is not set +# CONFIG_INET_TUNNEL is not set +CONFIG_INET_XFRM_MODE_TRANSPORT=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_INET_XFRM_MODE_BEET=y +CONFIG_INET_DIAG=y +CONFIG_INET_TCP_DIAG=y +# CONFIG_TCP_CONG_ADVANCED is not set +CONFIG_TCP_CONG_CUBIC=y +CONFIG_DEFAULT_TCP_CONG="cubic" +# CONFIG_TCP_MD5SIG is not set +# CONFIG_IPV6 is not set +# CONFIG_INET6_XFRM_TUNNEL is not set +# CONFIG_INET6_TUNNEL is not set +# CONFIG_NETLABEL is not set +# CONFIG_NETWORK_SECMARK is not set +# CONFIG_NETFILTER is not set + +# +# DCCP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_DCCP is not set + +# +# SCTP Configuration (EXPERIMENTAL) +# +# CONFIG_IP_SCTP is not set + +# +# TIPC Configuration (EXPERIMENTAL) +# +# CONFIG_TIPC is not set +# CONFIG_ATM is not set +# CONFIG_BRIDGE is not set +# CONFIG_VLAN_8021Q is not set +# CONFIG_DECNET is not set +# CONFIG_LLC2 is not set +# CONFIG_IPX is not set +# CONFIG_ATALK is not set +# CONFIG_X25 is not set +# CONFIG_LAPB is not set +# CONFIG_ECONET is not set +# CONFIG_WAN_ROUTER is not set + +# +# QoS and/or fair queueing +# +# CONFIG_NET_SCHED is not set + +# +# Network testing +# +# CONFIG_NET_PKTGEN is not set +# CONFIG_HAMRADIO is not set +# CONFIG_IRDA is not set +# CONFIG_BT is not set +# CONFIG_IEEE80211 is not set + +# +# Device Drivers +# + +# +# Generic Driver Options +# +CONFIG_STANDALONE=y +CONFIG_PREVENT_FIRMWARE_BUILD=y +# CONFIG_FW_LOADER is not set +# CONFIG_DEBUG_DRIVER is not set +# CONFIG_DEBUG_DEVRES is not set +# CONFIG_SYS_HYPERVISOR is not set + +# +# Connector - unified userspace <-> kernelspace linker +# +# CONFIG_CONNECTOR is not set + +# +# Memory Technology Devices (MTD) +# +CONFIG_MTD=y +# CONFIG_MTD_DEBUG is not set +# CONFIG_MTD_CONCAT is not set +CONFIG_MTD_PARTITIONS=y +# CONFIG_MTD_REDBOOT_PARTS is not set +# CONFIG_MTD_CMDLINE_PARTS is not set + +# +# User Modules And Translation Layers +# +# CONFIG_MTD_CHAR is not set +CONFIG_MTD_BLKDEVS=y +CONFIG_MTD_BLOCK=y +# CONFIG_FTL is not set +# CONFIG_NFTL is not set +# CONFIG_INFTL is not set +# CONFIG_RFD_FTL is not set +# CONFIG_SSFDC is not set + +# +# RAM/ROM/Flash chip drivers +# +# CONFIG_MTD_CFI is not set +# CONFIG_MTD_JEDECPROBE is not set +CONFIG_MTD_MAP_BANK_WIDTH_1=y +CONFIG_MTD_MAP_BANK_WIDTH_2=y +CONFIG_MTD_MAP_BANK_WIDTH_4=y +# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set +# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set +CONFIG_MTD_CFI_I1=y +CONFIG_MTD_CFI_I2=y +# CONFIG_MTD_CFI_I4 is not set +# CONFIG_MTD_CFI_I8 is not set +CONFIG_MTD_RAM=y +# CONFIG_MTD_ROM is not set +# CONFIG_MTD_ABSENT is not set +# CONFIG_MTD_OBSOLETE_CHIPS is not set + +# +# Mapping drivers for chip access +# +CONFIG_MTD_COMPLEX_MAPPINGS=y +# CONFIG_MTD_BF5xx is not set +CONFIG_MTD_UCLINUX=y +# CONFIG_MTD_PLATRAM is not set + +# +# Self-contained MTD device drivers +# +# CONFIG_MTD_SLRAM is not set +# CONFIG_MTD_PHRAM is not set +# CONFIG_MTD_MTDRAM is not set +# CONFIG_MTD_BLOCK2MTD is not set + +# +# Disk-On-Chip Device Drivers +# +# CONFIG_MTD_DOC2000 is not set +# CONFIG_MTD_DOC2001 is not set +# CONFIG_MTD_DOC2001PLUS is not set + +# +# NAND Flash Device Drivers +# +# CONFIG_MTD_NAND is not set + +# +# OneNAND Flash Device Drivers +# +# CONFIG_MTD_ONENAND is not set + +# +# Parallel port support +# +# CONFIG_PARPORT is not set + +# +# Plug and Play support +# +# CONFIG_PNPACPI is not set + +# +# Block devices +# +# CONFIG_BLK_DEV_COW_COMMON is not set +# CONFIG_BLK_DEV_LOOP is not set +# CONFIG_BLK_DEV_NBD is not set +CONFIG_BLK_DEV_RAM=y +CONFIG_BLK_DEV_RAM_COUNT=16 +CONFIG_BLK_DEV_RAM_SIZE=4096 +CONFIG_BLK_DEV_RAM_BLOCKSIZE=1024 +# CONFIG_CDROM_PKTCDVD is not set +# CONFIG_ATA_OVER_ETH is not set + +# +# Misc devices +# + +# +# ATA/ATAPI/MFM/RLL support +# +# CONFIG_IDE is not set + +# +# SCSI device support +# +# CONFIG_RAID_ATTRS is not set +# CONFIG_SCSI is not set +# CONFIG_SCSI_NETLINK is not set + +# +# Serial ATA (prod) and Parallel ATA (experimental) drivers +# +# CONFIG_ATA is not set + +# +# Multi-device support (RAID and LVM) +# +# CONFIG_MD is not set + +# +# Fusion MPT device support +# +# CONFIG_FUSION is not set + +# +# IEEE 1394 (FireWire) support +# + +# +# I2O device support +# + +# +# Network device support +# +CONFIG_NETDEVICES=y +# CONFIG_DUMMY is not set +# CONFIG_BONDING is not set +# CONFIG_EQUALIZER is not set +# CONFIG_TUN is not set + +# +# PHY device support +# +# CONFIG_PHYLIB is not set + +# +# Ethernet (10 or 100Mbit) +# +CONFIG_NET_ETHERNET=y +CONFIG_MII=y +# CONFIG_SMC91X is not set +# CONFIG_SMSC911X is not set + +# +# Ethernet (1000 Mbit) +# + +# +# Ethernet (10000 Mbit) +# + +# +# Token Ring devices +# + +# +# Wireless LAN (non-hamradio) +# +# CONFIG_NET_RADIO is not set + +# +# Wan interfaces +# +# CONFIG_WAN is not set +# CONFIG_PPP is not set +# CONFIG_SLIP is not set +# CONFIG_SHAPER is not set +# CONFIG_NETCONSOLE is not set +# CONFIG_NETPOLL is not set +# CONFIG_NET_POLL_CONTROLLER is not set + +# +# ISDN subsystem +# +# CONFIG_ISDN is not set + +# +# Telephony Support +# +# CONFIG_PHONE is not set + +# +# Input device support +# +CONFIG_INPUT=y +# CONFIG_INPUT_FF_MEMLESS is not set + +# +# Userland interfaces +# +# CONFIG_INPUT_MOUSEDEV is not set +# CONFIG_INPUT_JOYDEV is not set +# CONFIG_INPUT_TSDEV is not set +# CONFIG_INPUT_EVDEV is not set +# CONFIG_INPUT_EVBUG is not set + +# +# Input Device Drivers +# +# CONFIG_INPUT_KEYBOARD is not set +# CONFIG_INPUT_MOUSE is not set +# CONFIG_INPUT_JOYSTICK is not set +# CONFIG_INPUT_TOUCHSCREEN is not set +CONFIG_INPUT_MISC=y +# CONFIG_INPUT_UINPUT is not set +# CONFIG_BF53X_PFBUTTONS is not set + +# +# Hardware I/O ports +# +# CONFIG_SERIO is not set +# CONFIG_GAMEPORT is not set + +# +# Character devices +# +# CONFIG_AD9960 is not set +# CONFIG_SPI_ADC_BF533 is not set +# CONFIG_BF5xx_PFLAGS is not set +# CONFIG_BF5xx_PPIFCD is not set +# CONFIG_BF5xx_TIMERS is not set +# CONFIG_BF5xx_PPI is not set +# CONFIG_BFIN_SPORT is not set +# CONFIG_BFIN_TIMER_LATENCY is not set +# CONFIG_BF5xx_FBDMA is not set +# CONFIG_VT is not set +# CONFIG_SERIAL_NONSTANDARD is not set + +# +# Serial drivers +# +# CONFIG_SERIAL_8250 is not set + +# +# Non-8250 serial port support +# +CONFIG_SERIAL_BFIN=y +CONFIG_SERIAL_BFIN_CONSOLE=y +# CONFIG_SERIAL_BFIN_DMA is not set +CONFIG_SERIAL_BFIN_PIO=y +# CONFIG_SERIAL_BFIN_UART0 is not set +CONFIG_SERIAL_BFIN_UART1=y +# CONFIG_BFIN_UART1_CTSRTS is not set +# CONFIG_SERIAL_BFIN_UART2 is not set +# CONFIG_SERIAL_BFIN_UART3 is not set +CONFIG_SERIAL_CORE=y +CONFIG_SERIAL_CORE_CONSOLE=y +# CONFIG_SERIAL_BFIN_SPORT is not set +CONFIG_UNIX98_PTYS=y +# CONFIG_LEGACY_PTYS is not set + +# +# CAN, the car bus and industrial fieldbus +# +# CONFIG_CAN4LINUX is not set + +# +# IPMI +# +# CONFIG_IPMI_HANDLER is not set + +# +# Watchdog Cards +# +# CONFIG_WATCHDOG is not set +CONFIG_HW_RANDOM=y +# CONFIG_GEN_RTC is not set +# CONFIG_DTLK is not set +# CONFIG_R3964 is not set +# CONFIG_RAW_DRIVER is not set + +# +# TPM devices +# +# CONFIG_TCG_TPM is not set + +# +# I2C support +# +# CONFIG_I2C is not set + +# +# SPI support +# +# CONFIG_SPI is not set +# CONFIG_SPI_MASTER is not set + +# +# Dallas's 1-wire bus +# +# CONFIG_W1 is not set + +# +# Hardware Monitoring support +# +CONFIG_HWMON=y +# CONFIG_HWMON_VID is not set +# CONFIG_SENSORS_ABITUGURU is not set +# CONFIG_SENSORS_F71805F is not set +# CONFIG_SENSORS_PC87427 is not set +# CONFIG_SENSORS_VT1211 is not set +# CONFIG_HWMON_DEBUG_CHIP is not set + +# +# Multifunction device drivers +# +# CONFIG_MFD_SM501 is not set + +# +# Multimedia devices +# +# CONFIG_VIDEO_DEV is not set + +# +# Digital Video Broadcasting Devices +# +# CONFIG_DVB is not set + +# +# Graphics support +# +# CONFIG_BACKLIGHT_LCD_SUPPORT is not set +# CONFIG_FB is not set + +# +# Sound +# +# CONFIG_SOUND is not set + +# +# HID Devices +# +CONFIG_HID=y +# CONFIG_HID_DEBUG is not set + +# +# USB support +# +CONFIG_USB_ARCH_HAS_HCD=y +# CONFIG_USB_ARCH_HAS_OHCI is not set +# CONFIG_USB_ARCH_HAS_EHCI is not set +# CONFIG_USB is not set + +# +# NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' +# + +# +# USB Gadget Support +# +# CONFIG_USB_GADGET is not set + +# +# MMC/SD Card support +# +# CONFIG_MMC is not set + +# +# LED devices +# +# CONFIG_NEW_LEDS is not set + +# +# LED drivers +# + +# +# LED Triggers +# + +# +# InfiniBand support +# + +# +# EDAC - error detection and reporting (RAS) (EXPERIMENTAL) +# + +# +# Real Time Clock +# +CONFIG_RTC_LIB=y +CONFIG_RTC_CLASS=y +CONFIG_RTC_HCTOSYS=y +CONFIG_RTC_HCTOSYS_DEVICE="rtc0" +# CONFIG_RTC_DEBUG is not set + +# +# RTC interfaces +# +CONFIG_RTC_INTF_SYSFS=y +CONFIG_RTC_INTF_PROC=y +CONFIG_RTC_INTF_DEV=y +# CONFIG_RTC_INTF_DEV_UIE_EMUL is not set + +# +# RTC drivers +# +# CONFIG_RTC_DRV_DS1553 is not set +# CONFIG_RTC_DRV_DS1742 is not set +# CONFIG_RTC_DRV_M48T86 is not set +# CONFIG_RTC_DRV_TEST is not set +# CONFIG_RTC_DRV_V3020 is not set +CONFIG_RTC_DRV_BFIN=y + +# +# DMA Engine support +# +# CONFIG_DMA_ENGINE is not set + +# +# DMA Clients +# + +# +# DMA Devices +# + +# +# Auxiliary Display support +# + +# +# Virtualization +# + +# +# PBX support +# +# CONFIG_PBX is not set + +# +# File systems +# +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +# CONFIG_EXT2_FS_POSIX_ACL is not set +# CONFIG_EXT2_FS_SECURITY is not set +# CONFIG_EXT3_FS is not set +# CONFIG_EXT4DEV_FS is not set +CONFIG_FS_MBCACHE=y +# CONFIG_REISERFS_FS is not set +# CONFIG_JFS_FS is not set +# CONFIG_FS_POSIX_ACL is not set +# CONFIG_XFS_FS is not set +# CONFIG_GFS2_FS is not set +# CONFIG_OCFS2_FS is not set +# CONFIG_MINIX_FS is not set +# CONFIG_ROMFS_FS is not set +CONFIG_INOTIFY=y +CONFIG_INOTIFY_USER=y +# CONFIG_QUOTA is not set +CONFIG_DNOTIFY=y +# CONFIG_AUTOFS_FS is not set +# CONFIG_AUTOFS4_FS is not set +# CONFIG_FUSE_FS is not set + +# +# CD-ROM/DVD Filesystems +# +# CONFIG_ISO9660_FS is not set +# CONFIG_UDF_FS is not set + +# +# DOS/FAT/NT Filesystems +# +# CONFIG_MSDOS_FS is not set +# CONFIG_VFAT_FS is not set +# CONFIG_NTFS_FS is not set + +# +# Pseudo filesystems +# +CONFIG_PROC_FS=y +CONFIG_PROC_SYSCTL=y +CONFIG_SYSFS=y +# CONFIG_TMPFS is not set +# CONFIG_HUGETLB_PAGE is not set +CONFIG_RAMFS=y +# CONFIG_CONFIGFS_FS is not set + +# +# Miscellaneous filesystems +# +# CONFIG_ADFS_FS is not set +# CONFIG_AFFS_FS is not set +# CONFIG_HFS_FS is not set +# CONFIG_HFSPLUS_FS is not set +# CONFIG_BEFS_FS is not set +# CONFIG_BFS_FS is not set +# CONFIG_EFS_FS is not set +# CONFIG_YAFFS_FS is not set +# CONFIG_JFFS2_FS is not set +# CONFIG_CRAMFS is not set +# CONFIG_VXFS_FS is not set +# CONFIG_HPFS_FS is not set +# CONFIG_QNX4FS_FS is not set +# CONFIG_SYSV_FS is not set +# CONFIG_UFS_FS is not set + +# +# Network File Systems +# +# CONFIG_NFS_FS is not set +# CONFIG_NFSD is not set +# CONFIG_SMB_FS is not set +# CONFIG_CIFS is not set +# CONFIG_NCP_FS is not set +# CONFIG_CODA_FS is not set +# CONFIG_AFS_FS is not set +# CONFIG_9P_FS is not set + +# +# Partition Types +# +# CONFIG_PARTITION_ADVANCED is not set +CONFIG_MSDOS_PARTITION=y + +# +# Native Language Support +# +# CONFIG_NLS is not set + +# +# Distributed Lock Manager +# +# CONFIG_DLM is not set + +# +# Profiling support +# +# CONFIG_PROFILING is not set + +# +# Kernel hacking +# +# CONFIG_PRINTK_TIME is not set +CONFIG_ENABLE_MUST_CHECK=y +CONFIG_MAGIC_SYSRQ=y +# CONFIG_UNUSED_SYMBOLS is not set +# CONFIG_DEBUG_FS is not set +# CONFIG_HEADERS_CHECK is not set +CONFIG_DEBUG_KERNEL=y +# CONFIG_DEBUG_SHIRQ is not set +CONFIG_LOG_BUF_SHIFT=14 +CONFIG_DETECT_SOFTLOCKUP=y +# CONFIG_SCHEDSTATS is not set +# CONFIG_TIMER_STATS is not set +# CONFIG_DEBUG_SLAB is not set +# CONFIG_DEBUG_RT_MUTEXES is not set +# CONFIG_RT_MUTEX_TESTER is not set +# CONFIG_DEBUG_SPINLOCK is not set +# CONFIG_DEBUG_MUTEXES is not set +# CONFIG_DEBUG_SPINLOCK_SLEEP is not set +# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set +# CONFIG_DEBUG_KOBJECT is not set +# CONFIG_DEBUG_BUGVERBOSE is not set +CONFIG_DEBUG_INFO=y +# CONFIG_DEBUG_VM is not set +# CONFIG_DEBUG_LIST is not set +CONFIG_FRAME_POINTER=y +CONFIG_FORCED_INLINING=y +# CONFIG_RCU_TORTURE_TEST is not set +# CONFIG_FAULT_INJECTION is not set +CONFIG_DEBUG_HWERR=y +# CONFIG_DEBUG_ICACHE_CHECK is not set +# CONFIG_DEBUG_KERNEL_START is not set +# CONFIG_DEBUG_SERIAL_EARLY_INIT is not set +CONFIG_DEBUG_HUNT_FOR_ZERO=y +# CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE is not set +CONFIG_CPLB_INFO=y +CONFIG_ACCESS_CHECK=y + +# +# Security options +# +# CONFIG_KEYS is not set +CONFIG_SECURITY=y +# CONFIG_SECURITY_NETWORK is not set +CONFIG_SECURITY_CAPABILITIES=y + +# +# Cryptographic options +# +# CONFIG_CRYPTO is not set + +# +# Library routines +# +CONFIG_BITREVERSE=y +# CONFIG_CRC_CCITT is not set +# CONFIG_CRC16 is not set +CONFIG_CRC32=y +# CONFIG_LIBCRC32C is not set +CONFIG_ZLIB_INFLATE=y +CONFIG_PLIST=y +CONFIG_HAS_IOMEM=y +CONFIG_HAS_IOPORT=y diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile index f3b7d2f9d49c..f429ebc3a961 100644 --- a/arch/blackfin/kernel/Makefile +++ b/arch/blackfin/kernel/Makefile @@ -6,9 +6,12 @@ extra-y := init_task.o vmlinux.lds obj-y := \ entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \ - sys_bfin.o time.o traps.o irqchip.o dma-mapping.o bfin_gpio.o \ - flat.o + sys_bfin.o time.o traps.o irqchip.o dma-mapping.o flat.o \ + fixed_code.o cplbinit.o cacheinit.o +obj-$(CONFIG_BF53x) += bfin_gpio.o +obj-$(CONFIG_BF561) += bfin_gpio.o obj-$(CONFIG_MODULES) += module.o obj-$(CONFIG_BFIN_DMA_5XX) += bfin_dma_5xx.o obj-$(CONFIG_DUAL_CORE_TEST_MODULE) += dualcore_test.o +obj-$(CONFIG_KGDB) += kgdb.o diff --git a/arch/blackfin/kernel/asm-offsets.c b/arch/blackfin/kernel/asm-offsets.c index e455f4504509..b56b2741cdea 100644 --- a/arch/blackfin/kernel/asm-offsets.c +++ b/arch/blackfin/kernel/asm-offsets.c @@ -32,11 +32,10 @@ #include <linux/kernel_stat.h> #include <linux/ptrace.h> #include <linux/hardirq.h> -#include <asm/irq.h> -#include <asm/thread_info.h> +#include <linux/irq.h> +#include <linux/thread_info.h> -#define DEFINE(sym, val) \ - asm volatile("\n->" #sym " %0 " #val : : "i" (val)) +#define DEFINE(sym, val) asm volatile("\n->" #sym " %0 " #val : : "i" (val)) int main(void) { diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 069a896a8f26..7cf02f02a1db 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -34,6 +34,7 @@ #include <linux/kernel.h> #include <linux/param.h> +#include <asm/blackfin.h> #include <asm/dma.h> #include <asm/cacheflush.h> @@ -45,67 +46,6 @@ ***************************************************************************/ static struct dma_channel dma_ch[MAX_BLACKFIN_DMA_CHANNEL]; -#if defined (CONFIG_BF561) -static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { - (struct dma_register *) DMA1_0_NEXT_DESC_PTR, - (struct dma_register *) DMA1_1_NEXT_DESC_PTR, - (struct dma_register *) DMA1_2_NEXT_DESC_PTR, - (struct dma_register *) DMA1_3_NEXT_DESC_PTR, - (struct dma_register *) DMA1_4_NEXT_DESC_PTR, - (struct dma_register *) DMA1_5_NEXT_DESC_PTR, - (struct dma_register *) DMA1_6_NEXT_DESC_PTR, - (struct dma_register *) DMA1_7_NEXT_DESC_PTR, - (struct dma_register *) DMA1_8_NEXT_DESC_PTR, - (struct dma_register *) DMA1_9_NEXT_DESC_PTR, - (struct dma_register *) DMA1_10_NEXT_DESC_PTR, - (struct dma_register *) DMA1_11_NEXT_DESC_PTR, - (struct dma_register *) DMA2_0_NEXT_DESC_PTR, - (struct dma_register *) DMA2_1_NEXT_DESC_PTR, - (struct dma_register *) DMA2_2_NEXT_DESC_PTR, - (struct dma_register *) DMA2_3_NEXT_DESC_PTR, - (struct dma_register *) DMA2_4_NEXT_DESC_PTR, - (struct dma_register *) DMA2_5_NEXT_DESC_PTR, - (struct dma_register *) DMA2_6_NEXT_DESC_PTR, - (struct dma_register *) DMA2_7_NEXT_DESC_PTR, - (struct dma_register *) DMA2_8_NEXT_DESC_PTR, - (struct dma_register *) DMA2_9_NEXT_DESC_PTR, - (struct dma_register *) DMA2_10_NEXT_DESC_PTR, - (struct dma_register *) DMA2_11_NEXT_DESC_PTR, - (struct dma_register *) MDMA1_D0_NEXT_DESC_PTR, - (struct dma_register *) MDMA1_S0_NEXT_DESC_PTR, - (struct dma_register *) MDMA1_D1_NEXT_DESC_PTR, - (struct dma_register *) MDMA1_S1_NEXT_DESC_PTR, - (struct dma_register *) MDMA2_D0_NEXT_DESC_PTR, - (struct dma_register *) MDMA2_S0_NEXT_DESC_PTR, - (struct dma_register *) MDMA2_D1_NEXT_DESC_PTR, - (struct dma_register *) MDMA2_S1_NEXT_DESC_PTR, - (struct dma_register *) IMDMA_D0_NEXT_DESC_PTR, - (struct dma_register *) IMDMA_S0_NEXT_DESC_PTR, - (struct dma_register *) IMDMA_D1_NEXT_DESC_PTR, - (struct dma_register *) IMDMA_S1_NEXT_DESC_PTR, -}; -#else -static struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { - (struct dma_register *) DMA0_NEXT_DESC_PTR, - (struct dma_register *) DMA1_NEXT_DESC_PTR, - (struct dma_register *) DMA2_NEXT_DESC_PTR, - (struct dma_register *) DMA3_NEXT_DESC_PTR, - (struct dma_register *) DMA4_NEXT_DESC_PTR, - (struct dma_register *) DMA5_NEXT_DESC_PTR, - (struct dma_register *) DMA6_NEXT_DESC_PTR, - (struct dma_register *) DMA7_NEXT_DESC_PTR, -#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536)) - (struct dma_register *) DMA8_NEXT_DESC_PTR, - (struct dma_register *) DMA9_NEXT_DESC_PTR, - (struct dma_register *) DMA10_NEXT_DESC_PTR, - (struct dma_register *) DMA11_NEXT_DESC_PTR, -#endif - (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, - (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, - (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, - (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, -}; -#endif /*------------------------------------------------------------------------------ * Set the Buffer Clear bit in the Configuration register of specific DMA @@ -138,149 +78,6 @@ static int __init blackfin_dma_init(void) arch_initcall(blackfin_dma_init); -/* - * Form the channel find the irq number for that channel. - */ -#if !defined(CONFIG_BF561) - -static int bf533_channel2irq(unsigned int channel) -{ - int ret_irq = -1; - - switch (channel) { - case CH_PPI: - ret_irq = IRQ_PPI; - break; - -#if (defined(CONFIG_BF537) || defined(CONFIG_BF534) || defined(CONFIG_BF536)) - case CH_EMAC_RX: - ret_irq = IRQ_MAC_RX; - break; - - case CH_EMAC_TX: - ret_irq = IRQ_MAC_TX; - break; - - case CH_UART1_RX: - ret_irq = IRQ_UART1_RX; - break; - - case CH_UART1_TX: - ret_irq = IRQ_UART1_TX; - break; -#endif - - case CH_SPORT0_RX: - ret_irq = IRQ_SPORT0_RX; - break; - - case CH_SPORT0_TX: - ret_irq = IRQ_SPORT0_TX; - break; - - case CH_SPORT1_RX: - ret_irq = IRQ_SPORT1_RX; - break; - - case CH_SPORT1_TX: - ret_irq = IRQ_SPORT1_TX; - break; - - case CH_SPI: - ret_irq = IRQ_SPI; - break; - - case CH_UART_RX: - ret_irq = IRQ_UART_RX; - break; - - case CH_UART_TX: - ret_irq = IRQ_UART_TX; - break; - - case CH_MEM_STREAM0_SRC: - case CH_MEM_STREAM0_DEST: - ret_irq = IRQ_MEM_DMA0; - break; - - case CH_MEM_STREAM1_SRC: - case CH_MEM_STREAM1_DEST: - ret_irq = IRQ_MEM_DMA1; - break; - } - return ret_irq; -} - -# define channel2irq(channel) bf533_channel2irq(channel) - -#else - -static int bf561_channel2irq(unsigned int channel) -{ - int ret_irq = -1; - - switch (channel) { - case CH_PPI0: - ret_irq = IRQ_PPI0; - break; - case CH_PPI1: - ret_irq = IRQ_PPI1; - break; - case CH_SPORT0_RX: - ret_irq = IRQ_SPORT0_RX; - break; - case CH_SPORT0_TX: - ret_irq = IRQ_SPORT0_TX; - break; - case CH_SPORT1_RX: - ret_irq = IRQ_SPORT1_RX; - break; - case CH_SPORT1_TX: - ret_irq = IRQ_SPORT1_TX; - break; - case CH_SPI: - ret_irq = IRQ_SPI; - break; - case CH_UART_RX: - ret_irq = IRQ_UART_RX; - break; - case CH_UART_TX: - ret_irq = IRQ_UART_TX; - break; - - case CH_MEM_STREAM0_SRC: - case CH_MEM_STREAM0_DEST: - ret_irq = IRQ_MEM_DMA0; - break; - case CH_MEM_STREAM1_SRC: - case CH_MEM_STREAM1_DEST: - ret_irq = IRQ_MEM_DMA1; - break; - case CH_MEM_STREAM2_SRC: - case CH_MEM_STREAM2_DEST: - ret_irq = IRQ_MEM_DMA2; - break; - case CH_MEM_STREAM3_SRC: - case CH_MEM_STREAM3_DEST: - ret_irq = IRQ_MEM_DMA3; - break; - - case CH_IMEM_STREAM0_SRC: - case CH_IMEM_STREAM0_DEST: - ret_irq = IRQ_IMEM_DMA0; - break; - case CH_IMEM_STREAM1_SRC: - case CH_IMEM_STREAM1_DEST: - ret_irq = IRQ_IMEM_DMA1; - break; - } - return ret_irq; -} - -# define channel2irq(channel) bf561_channel2irq(channel) - -#endif - /*------------------------------------------------------------------------------ * Request the specific DMA channel from the system. *-----------------------------------------------------------------------------*/ @@ -535,7 +332,7 @@ set_bfin_dma_config(char direction, char flow_mode, } EXPORT_SYMBOL(set_bfin_dma_config); -void set_dma_sg(unsigned int channel, struct dmasg * sg, int nr_sg) +void set_dma_sg(unsigned int channel, struct dmasg *sg, int nr_sg) { BUG_ON(!(dma_ch[channel].chan_status != DMA_CHANNEL_FREE && channel < MAX_BLACKFIN_DMA_CHANNEL)); @@ -604,7 +401,7 @@ static void *__dma_memcpy(void *dest, const void *src, size_t size) if (size <= 0) return NULL; - + local_irq_save(flags); if ((unsigned long)src < memory_end) @@ -748,7 +545,6 @@ void *dma_memcpy(void *dest, const void *src, size_t size) addr = __dma_memcpy(dest+bulk, src+bulk, rest); return addr; } - EXPORT_SYMBOL(dma_memcpy); void *safe_dma_memcpy(void *dest, const void *src, size_t size) @@ -761,14 +557,13 @@ EXPORT_SYMBOL(safe_dma_memcpy); void dma_outsb(void __iomem *addr, const void *buf, unsigned short len) { - unsigned long flags; - + local_irq_save(flags); - - blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len); - bfin_write_MDMA_D0_START_ADDR(addr); + blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len); + + bfin_write_MDMA_D0_START_ADDR(addr); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(0); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); @@ -796,9 +591,9 @@ EXPORT_SYMBOL(dma_outsb); void dma_insb(const void __iomem *addr, void *buf, unsigned short len) { unsigned long flags; - + local_irq_save(flags); - bfin_write_MDMA_D0_START_ADDR(buf); + bfin_write_MDMA_D0_START_ADDR(buf); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(1); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); @@ -827,12 +622,12 @@ EXPORT_SYMBOL(dma_insb); void dma_outsw(void __iomem *addr, const void *buf, unsigned short len) { unsigned long flags; - + local_irq_save(flags); - - blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len); - bfin_write_MDMA_D0_START_ADDR(addr); + blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len); + + bfin_write_MDMA_D0_START_ADDR(addr); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(0); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); @@ -859,10 +654,10 @@ EXPORT_SYMBOL(dma_outsw); void dma_insw(const void __iomem *addr, void *buf, unsigned short len) { unsigned long flags; - + local_irq_save(flags); - - bfin_write_MDMA_D0_START_ADDR(buf); + + bfin_write_MDMA_D0_START_ADDR(buf); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(2); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); @@ -891,12 +686,12 @@ EXPORT_SYMBOL(dma_insw); void dma_outsl(void __iomem *addr, const void *buf, unsigned short len) { unsigned long flags; - + local_irq_save(flags); - - blackfin_dcache_flush_range((unsigned int)buf,(unsigned int)(buf) + len); - bfin_write_MDMA_D0_START_ADDR(addr); + blackfin_dcache_flush_range((unsigned int)buf, (unsigned int)(buf) + len); + + bfin_write_MDMA_D0_START_ADDR(addr); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(0); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); @@ -923,10 +718,10 @@ EXPORT_SYMBOL(dma_outsl); void dma_insl(const void __iomem *addr, void *buf, unsigned short len) { unsigned long flags; - + local_irq_save(flags); - - bfin_write_MDMA_D0_START_ADDR(buf); + + bfin_write_MDMA_D0_START_ADDR(buf); bfin_write_MDMA_D0_X_COUNT(len); bfin_write_MDMA_D0_X_MODIFY(4); bfin_write_MDMA_D0_IRQ_STATUS(DMA_DONE | DMA_ERR); diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c index bb1f4fb2467c..bafcfa52142b 100644 --- a/arch/blackfin/kernel/bfin_gpio.c +++ b/arch/blackfin/kernel/bfin_gpio.c @@ -162,7 +162,7 @@ static void port_setup(unsigned short gpio, unsigned short usage) static void default_gpio(unsigned short gpio) { - unsigned short bank,bitmask; + unsigned short bank, bitmask; bank = gpio_bank(gpio); bitmask = gpio_bit(gpio); @@ -183,7 +183,7 @@ static int __init bfin_gpio_init(void) printk(KERN_INFO "Blackfin GPIO Controller\n"); - for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) reserved_map[gpio_bank(i)] = 0; #if defined(BF537_FAMILY) && (defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) @@ -478,7 +478,7 @@ u32 gpio_pm_setup(void) u32 sic_iwr = 0; u16 bank, mask, i, gpio; - for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) { + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { mask = wakeup_map[gpio_bank(i)]; bank = gpio_bank(i); @@ -522,12 +522,11 @@ u32 gpio_pm_setup(void) return IWR_ENABLE_ALL; } - void gpio_pm_restore(void) { u16 bank, mask, i; - for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=GPIO_BANKSIZE) { + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) { mask = wakeup_map[gpio_bank(i)]; bank = gpio_bank(i); @@ -591,7 +590,6 @@ int gpio_request(unsigned short gpio, const char *label) } EXPORT_SYMBOL(gpio_request); - void gpio_free(unsigned short gpio) { unsigned long flags; @@ -616,7 +614,6 @@ void gpio_free(unsigned short gpio) } EXPORT_SYMBOL(gpio_free); - void gpio_direction_input(unsigned short gpio) { unsigned long flags; diff --git a/arch/blackfin/kernel/bfin_ksyms.c b/arch/blackfin/kernel/bfin_ksyms.c index f64ecb638fab..70455949cfd2 100644 --- a/arch/blackfin/kernel/bfin_ksyms.c +++ b/arch/blackfin/kernel/bfin_ksyms.c @@ -28,10 +28,11 @@ */ #include <linux/module.h> -#include <asm/irq.h> +#include <linux/irq.h> +#include <linux/uaccess.h> + #include <asm/checksum.h> #include <asm/cacheflush.h> -#include <asm/uaccess.h> /* platform dependent support */ diff --git a/arch/blackfin/kernel/cacheinit.c b/arch/blackfin/kernel/cacheinit.c new file mode 100644 index 000000000000..4d41a40e8133 --- /dev/null +++ b/arch/blackfin/kernel/cacheinit.c @@ -0,0 +1,66 @@ +/* + * Copyright 2004-2007 Analog Devices Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/cpu.h> + +#include <asm/cacheflush.h> +#include <asm/blackfin.h> +#include <asm/cplbinit.h> + +#if defined(CONFIG_BLKFIN_CACHE) +void bfin_icache_init(void) +{ + unsigned long *table = icplb_table; + unsigned long ctrl; + int i; + + for (i = 0; i < MAX_CPLBS; i++) { + unsigned long addr = *table++; + unsigned long data = *table++; + if (addr == (unsigned long)-1) + break; + bfin_write32(ICPLB_ADDR0 + i * 4, addr); + bfin_write32(ICPLB_DATA0 + i * 4, data); + } + ctrl = bfin_read_IMEM_CONTROL(); + ctrl |= IMC | ENICPLB; + bfin_write_IMEM_CONTROL(ctrl); +} +#endif + +#if defined(CONFIG_BLKFIN_DCACHE) +void bfin_dcache_init(void) +{ + unsigned long *table = dcplb_table; + unsigned long ctrl; + int i; + + for (i = 0; i < MAX_CPLBS; i++) { + unsigned long addr = *table++; + unsigned long data = *table++; + if (addr == (unsigned long)-1) + break; + bfin_write32(DCPLB_ADDR0 + i * 4, addr); + bfin_write32(DCPLB_DATA0 + i * 4, data); + } + ctrl = bfin_read_DMEM_CONTROL(); + ctrl |= DMEM_CNTR; + bfin_write_DMEM_CONTROL(ctrl); +} +#endif diff --git a/arch/blackfin/kernel/cplbinit.c b/arch/blackfin/kernel/cplbinit.c new file mode 100644 index 000000000000..bbdb403fcb55 --- /dev/null +++ b/arch/blackfin/kernel/cplbinit.c @@ -0,0 +1,433 @@ +/* + * Blackfin CPLB initialization + * + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/module.h> + +#include <asm/blackfin.h> +#include <asm/cplbinit.h> + +u_long icplb_table[MAX_CPLBS+1]; +u_long dcplb_table[MAX_CPLBS+1]; + +#ifdef CONFIG_CPLB_SWITCH_TAB_L1 +u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data)); +u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data)); + +#ifdef CONFIG_CPLB_INFO +u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data)); +u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data)); +#endif /* CONFIG_CPLB_INFO */ + +#else + +u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]; +u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]; + +#ifdef CONFIG_CPLB_INFO +u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]; +u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]; +#endif /* CONFIG_CPLB_INFO */ + +#endif /*CONFIG_CPLB_SWITCH_TAB_L1*/ + +struct s_cplb { + struct cplb_tab init_i; + struct cplb_tab init_d; + struct cplb_tab switch_i; + struct cplb_tab switch_d; +}; + +#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) +static struct cplb_desc cplb_data[] = { + { + .start = 0, + .end = SIZE_1K, + .psize = SIZE_1K, + .attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB, + .i_conf = SDRAM_OOPS, + .d_conf = SDRAM_OOPS, +#if defined(CONFIG_DEBUG_HUNT_FOR_ZERO) + .valid = 1, +#else + .valid = 0, +#endif + .name = "ZERO Pointer Saveguard", + }, + { + .start = L1_CODE_START, + .end = L1_CODE_START + L1_CODE_LENGTH, + .psize = SIZE_4M, + .attr = INITIAL_T | SWITCH_T | I_CPLB, + .i_conf = L1_IMEMORY, + .d_conf = 0, + .valid = 1, + .name = "L1 I-Memory", + }, + { + .start = L1_DATA_A_START, + .end = L1_DATA_B_START + L1_DATA_B_LENGTH, + .psize = SIZE_4M, + .attr = INITIAL_T | SWITCH_T | D_CPLB, + .i_conf = 0, + .d_conf = L1_DMEMORY, +#if ((L1_DATA_A_LENGTH > 0) || (L1_DATA_B_LENGTH > 0)) + .valid = 1, +#else + .valid = 0, +#endif + .name = "L1 D-Memory", + }, + { + .start = 0, + .end = 0, /* dynamic */ + .psize = 0, + .attr = INITIAL_T | SWITCH_T | I_CPLB | D_CPLB, + .i_conf = SDRAM_IGENERIC, + .d_conf = SDRAM_DGENERIC, + .valid = 1, + .name = "SDRAM Kernel", + }, + { + .start = 0, /* dynamic */ + .end = 0, /* dynamic */ + .psize = 0, + .attr = INITIAL_T | SWITCH_T | D_CPLB, + .i_conf = SDRAM_IGENERIC, + .d_conf = SDRAM_DNON_CHBL, + .valid = 1, + .name = "SDRAM RAM MTD", + }, + { + .start = 0, /* dynamic */ + .end = 0, /* dynamic */ + .psize = SIZE_1M, + .attr = INITIAL_T | SWITCH_T | D_CPLB, + .d_conf = SDRAM_DNON_CHBL, + .valid = 1, + .name = "SDRAM Uncached DMA ZONE", + }, + { + .start = 0, /* dynamic */ + .end = 0, /* dynamic */ + .psize = 0, + .attr = SWITCH_T | D_CPLB, + .i_conf = 0, /* dynamic */ + .d_conf = 0, /* dynamic */ + .valid = 1, + .name = "SDRAM Reserved Memory", + }, + { + .start = ASYNC_BANK0_BASE, + .end = ASYNC_BANK3_BASE + ASYNC_BANK3_SIZE, + .psize = 0, + .attr = SWITCH_T | D_CPLB, + .d_conf = SDRAM_EBIU, + .valid = 1, + .name = "ASYNC Memory", + }, + { +#if defined(CONFIG_BF561) + .start = L2_SRAM, + .end = L2_SRAM_END, + .psize = SIZE_1M, + .attr = SWITCH_T | D_CPLB, + .i_conf = L2_MEMORY, + .d_conf = L2_MEMORY, + .valid = 1, +#else + .valid = 0, +#endif + .name = "L2 Memory", + } +}; + +static u16 __init lock_kernel_check(u32 start, u32 end) +{ + if ((start <= (u32) _stext && end >= (u32) _end) + || (start >= (u32) _stext && end <= (u32) _end)) + return IN_KERNEL; + return 0; +} + +static unsigned short __init +fill_cplbtab(struct cplb_tab *table, + unsigned long start, unsigned long end, + unsigned long block_size, unsigned long cplb_data) +{ + int i; + + switch (block_size) { + case SIZE_4M: + i = 3; + break; + case SIZE_1M: + i = 2; + break; + case SIZE_4K: + i = 1; + break; + case SIZE_1K: + default: + i = 0; + break; + } + + cplb_data = (cplb_data & ~(3 << 16)) | (i << 16); + + while ((start < end) && (table->pos < table->size)) { + + table->tab[table->pos++] = start; + + if (lock_kernel_check(start, start + block_size) == IN_KERNEL) + table->tab[table->pos++] = + cplb_data | CPLB_LOCK | CPLB_DIRTY; + else + table->tab[table->pos++] = cplb_data; + + start += block_size; + } + return 0; +} + +static unsigned short __init +close_cplbtab(struct cplb_tab *table) +{ + + while (table->pos < table->size) { + + table->tab[table->pos++] = 0; + table->tab[table->pos++] = 0; /* !CPLB_VALID */ + } + return 0; +} + +/* helper function */ +static void __fill_code_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) +{ + if (cplb_data[i].psize) { + fill_cplbtab(t, + cplb_data[i].start, + cplb_data[i].end, + cplb_data[i].psize, + cplb_data[i].i_conf); + } else { +#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263)) + if (i == SDRAM_KERN) { + fill_cplbtab(t, + cplb_data[i].start, + cplb_data[i].end, + SIZE_4M, + cplb_data[i].i_conf); + } else +#endif + { + fill_cplbtab(t, + cplb_data[i].start, + a_start, + SIZE_1M, + cplb_data[i].i_conf); + fill_cplbtab(t, + a_start, + a_end, + SIZE_4M, + cplb_data[i].i_conf); + fill_cplbtab(t, a_end, + cplb_data[i].end, + SIZE_1M, + cplb_data[i].i_conf); + } + } +} + +static void __fill_data_cplbtab(struct cplb_tab *t, int i, u32 a_start, u32 a_end) +{ + if (cplb_data[i].psize) { + fill_cplbtab(t, + cplb_data[i].start, + cplb_data[i].end, + cplb_data[i].psize, + cplb_data[i].d_conf); + } else { + fill_cplbtab(t, + cplb_data[i].start, + a_start, SIZE_1M, + cplb_data[i].d_conf); + fill_cplbtab(t, a_start, + a_end, SIZE_4M, + cplb_data[i].d_conf); + fill_cplbtab(t, a_end, + cplb_data[i].end, + SIZE_1M, + cplb_data[i].d_conf); + } +} + +void __init generate_cpl_tables(void) +{ + + u16 i, j, process; + u32 a_start, a_end, as, ae, as_1m; + + struct cplb_tab *t_i = NULL; + struct cplb_tab *t_d = NULL; + struct s_cplb cplb; + + cplb.init_i.size = MAX_CPLBS; + cplb.init_d.size = MAX_CPLBS; + cplb.switch_i.size = MAX_SWITCH_I_CPLBS; + cplb.switch_d.size = MAX_SWITCH_D_CPLBS; + + cplb.init_i.pos = 0; + cplb.init_d.pos = 0; + cplb.switch_i.pos = 0; + cplb.switch_d.pos = 0; + + cplb.init_i.tab = icplb_table; + cplb.init_d.tab = dcplb_table; + cplb.switch_i.tab = ipdt_table; + cplb.switch_d.tab = dpdt_table; + + cplb_data[SDRAM_KERN].end = memory_end; + +#ifdef CONFIG_MTD_UCLINUX + cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start; + cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size; + cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0; +# if defined(CONFIG_ROMFS_FS) + cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB; + + /* + * The ROMFS_FS size is often not multiple of 1MB. + * This can cause multiple CPLB sets covering the same memory area. + * This will then cause multiple CPLB hit exceptions. + * Workaround: We ensure a contiguous memory area by extending the kernel + * memory section over the mtd section. + * For ROMFS_FS memory must be covered with ICPLBs anyways. + * So there is no difference between kernel and mtd memory setup. + */ + + cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;; + cplb_data[SDRAM_RAM_MTD].valid = 0; + +# endif +#else + cplb_data[SDRAM_RAM_MTD].valid = 0; +#endif + + cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION; + cplb_data[SDRAM_DMAZ].end = _ramend; + + cplb_data[RES_MEM].start = _ramend; + cplb_data[RES_MEM].end = physical_mem_end; + + if (reserved_mem_dcache_on) + cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC; + else + cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL; + + if (reserved_mem_icache_on) + cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC; + else + cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL; + + for (i = ZERO_P; i <= L2_MEM; i++) { + if (!cplb_data[i].valid) + continue; + + as_1m = cplb_data[i].start % SIZE_1M; + + /* We need to make sure all sections are properly 1M aligned + * However between Kernel Memory and the Kernel mtd section, depending on the + * rootfs size, there can be overlapping memory areas. + */ + + if (as_1m && i != L1I_MEM && i != L1D_MEM) { +#ifdef CONFIG_MTD_UCLINUX + if (i == SDRAM_RAM_MTD) { + if ((cplb_data[SDRAM_KERN].end + 1) > cplb_data[SDRAM_RAM_MTD].start) + cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)) + SIZE_1M; + else + cplb_data[SDRAM_RAM_MTD].start = (cplb_data[i].start & (-2*SIZE_1M)); + } else +#endif + printk(KERN_WARNING "Unaligned Start of %s at 0x%X\n", + cplb_data[i].name, cplb_data[i].start); + } + + as = cplb_data[i].start % SIZE_4M; + ae = cplb_data[i].end % SIZE_4M; + + if (as) + a_start = cplb_data[i].start + (SIZE_4M - (as)); + else + a_start = cplb_data[i].start; + + a_end = cplb_data[i].end - ae; + + for (j = INITIAL_T; j <= SWITCH_T; j++) { + + switch (j) { + case INITIAL_T: + if (cplb_data[i].attr & INITIAL_T) { + t_i = &cplb.init_i; + t_d = &cplb.init_d; + process = 1; + } else + process = 0; + break; + case SWITCH_T: + if (cplb_data[i].attr & SWITCH_T) { + t_i = &cplb.switch_i; + t_d = &cplb.switch_d; + process = 1; + } else + process = 0; + break; + default: + process = 0; + break; + } + + if (!process) + continue; + if (cplb_data[i].attr & I_CPLB) + __fill_code_cplbtab(t_i, i, a_start, a_end); + + if (cplb_data[i].attr & D_CPLB) + __fill_data_cplbtab(t_d, i, a_start, a_end); + } + } + +/* close tables */ + + close_cplbtab(&cplb.init_i); + close_cplbtab(&cplb.init_d); + + cplb.init_i.tab[cplb.init_i.pos] = -1; + cplb.init_d.tab[cplb.init_d.pos] = -1; + cplb.switch_i.tab[cplb.switch_i.pos] = -1; + cplb.switch_d.tab[cplb.switch_d.pos] = -1; + +} + +#endif + diff --git a/arch/blackfin/kernel/dma-mapping.c b/arch/blackfin/kernel/dma-mapping.c index 539eb24e062f..ea48d5b13f11 100644 --- a/arch/blackfin/kernel/dma-mapping.c +++ b/arch/blackfin/kernel/dma-mapping.c @@ -34,8 +34,8 @@ #include <linux/spinlock.h> #include <linux/device.h> #include <linux/dma-mapping.h> +#include <linux/io.h> #include <asm/cacheflush.h> -#include <asm/io.h> #include <asm/bfin-global.h> static spinlock_t dma_page_lock; @@ -159,10 +159,13 @@ dma_map_sg(struct device *dev, struct scatterlist *sg, int nents, BUG_ON(direction == DMA_NONE); - for (i = 0; i < nents; i++) - invalidate_dcache_range(sg_dma_address(&sg[i]), - sg_dma_address(&sg[i]) + - sg_dma_len(&sg[i])); + for (i = 0; i < nents; i++, sg++) { + sg->dma_address = page_address(sg->page) + sg->offset; + + invalidate_dcache_range(sg_dma_address(sg), + sg_dma_address(sg) + + sg_dma_len(sg)); + } return nents; } diff --git a/arch/blackfin/kernel/dualcore_test.c b/arch/blackfin/kernel/dualcore_test.c index 8b89c99f9dfa..0fcba74840b7 100644 --- a/arch/blackfin/kernel/dualcore_test.c +++ b/arch/blackfin/kernel/dualcore_test.c @@ -30,19 +30,19 @@ #include <linux/init.h> #include <linux/module.h> -static int *testarg = (int*)0xfeb00000; +static int *testarg = (int *)0xfeb00000; static int test_init(void) { *testarg = 1; - printk("Dual core test module inserted: set testarg = [%d]\n @ [%p]\n", + printk(KERN_INFO "Dual core test module inserted: set testarg = [%d]\n @ [%p]\n", *testarg, testarg); return 0; } static void test_exit(void) { - printk("Dual core test module removed: testarg = [%d]\n", *testarg); + printk(KERN_INFO "Dual core test module removed: testarg = [%d]\n", *testarg); } module_init(test_init); diff --git a/arch/blackfin/kernel/fixed_code.S b/arch/blackfin/kernel/fixed_code.S new file mode 100644 index 000000000000..d8b1ebc70996 --- /dev/null +++ b/arch/blackfin/kernel/fixed_code.S @@ -0,0 +1,132 @@ +/* + * This file contains sequences of code that will be copied to a + * fixed location, defined in <asm/atomic_seq.h>. The interrupt + * handlers ensure that these sequences appear to be atomic when + * executed from userspace. + * These are aligned to 16 bytes, so that we have some space to replace + * these sequences with something else (e.g. kernel traps if we ever do + * BF561 SMP). + */ +#include <linux/linkage.h> +#include <linux/unistd.h> +#include <asm/entry.h> + +.text +ENTRY(_fixed_code_start) + +.align 16 +ENTRY(_sigreturn_stub) + P0 = __NR_rt_sigreturn; + EXCPT 0; + /* Speculative execution paranoia. */ +0: JUMP.S 0b; +ENDPROC (_sigreturn_stub) + +.align 16 + /* + * Atomic swap, 8 bit. + * Inputs: P0: memory address to use + * R1: value to store + * Output: R0: old contents of the memory address, zero extended. + */ +ENTRY(_atomic_xchg32) + R0 = [P0]; + [P0] = R1; + rts; +ENDPROC (_atomic_xchg32) + +.align 16 + /* + * Compare and swap, 32 bit. + * Inputs: P0: memory address to use + * R1: compare value + * R2: new value to store + * The new value is stored if the contents of the memory + * address is equal to the compare value. + * Output: R0: old contents of the memory address. + */ +ENTRY(_atomic_cas32) + R0 = [P0]; + CC = R0 == R1; + IF !CC JUMP 1f; + [P0] = R2; +1: + rts; +ENDPROC (_atomic_cas32) + +.align 16 + /* + * Atomic add, 32 bit. + * Inputs: P0: memory address to use + * R0: value to add + * Outputs: R0: new contents of the memory address. + * R1: previous contents of the memory address. + */ +ENTRY(_atomic_add32) + R1 = [P0]; + R0 = R1 + R0; + [P0] = R0; + rts; +ENDPROC (_atomic_add32) + +.align 16 + /* + * Atomic sub, 32 bit. + * Inputs: P0: memory address to use + * R0: value to subtract + * Outputs: R0: new contents of the memory address. + * R1: previous contents of the memory address. + */ +ENTRY(_atomic_sub32) + R1 = [P0]; + R0 = R1 - R0; + [P0] = R0; + rts; +ENDPROC (_atomic_sub32) + +.align 16 + /* + * Atomic ior, 32 bit. + * Inputs: P0: memory address to use + * R0: value to ior + * Outputs: R0: new contents of the memory address. + * R1: previous contents of the memory address. + */ +ENTRY(_atomic_ior32) + R1 = [P0]; + R0 = R1 | R0; + [P0] = R0; + rts; +ENDPROC (_atomic_ior32) + +.align 16 + /* + * Atomic ior, 32 bit. + * Inputs: P0: memory address to use + * R0: value to ior + * Outputs: R0: new contents of the memory address. + * R1: previous contents of the memory address. + */ +ENTRY(_atomic_and32) + R1 = [P0]; + R0 = R1 & R0; + [P0] = R0; + rts; +ENDPROC (_atomic_ior32) + +.align 16 + /* + * Atomic ior, 32 bit. + * Inputs: P0: memory address to use + * R0: value to ior + * Outputs: R0: new contents of the memory address. + * R1: previous contents of the memory address. + */ +ENTRY(_atomic_xor32) + R1 = [P0]; + R0 = R1 ^ R0; + [P0] = R0; + rts; +ENDPROC (_atomic_ior32) + +ENTRY(_fixed_code_end) diff --git a/arch/blackfin/kernel/flat.c b/arch/blackfin/kernel/flat.c index a92587b628b5..d188b2430536 100644 --- a/arch/blackfin/kernel/flat.c +++ b/arch/blackfin/kernel/flat.c @@ -36,24 +36,22 @@ unsigned long bfin_get_addr_from_rp(unsigned long *ptr, unsigned long val; switch (type) { - case FLAT_BFIN_RELOC_TYPE_16_BIT: - case FLAT_BFIN_RELOC_TYPE_16H_BIT: - usptr = (unsigned short *)ptr; - pr_debug("*usptr = %x", get_unaligned(usptr)); - val = get_unaligned(usptr); - val += *persistent; - break; + case FLAT_BFIN_RELOC_TYPE_16_BIT: + case FLAT_BFIN_RELOC_TYPE_16H_BIT: + usptr = (unsigned short *)ptr; + pr_debug("*usptr = %x", get_unaligned(usptr)); + val = get_unaligned(usptr); + val += *persistent; + break; - case FLAT_BFIN_RELOC_TYPE_32_BIT: - pr_debug("*ptr = %lx", get_unaligned(ptr)); - val = get_unaligned(ptr); - break; + case FLAT_BFIN_RELOC_TYPE_32_BIT: + pr_debug("*ptr = %lx", get_unaligned(ptr)); + val = get_unaligned(ptr); + break; - default: - pr_debug("BINFMT_FLAT: Unknown relocation type %x\n", - type); - - return 0; + default: + pr_debug("BINFMT_FLAT: Unknown relocation type %x\n", type); + return 0; } /* @@ -81,21 +79,20 @@ void bfin_put_addr_at_rp(unsigned long *ptr, unsigned long addr, int type = (relval >> 26) & 7; switch (type) { - case FLAT_BFIN_RELOC_TYPE_16_BIT: - put_unaligned(addr, usptr); - pr_debug("new value %x at %p", get_unaligned(usptr), - usptr); - break; + case FLAT_BFIN_RELOC_TYPE_16_BIT: + put_unaligned(addr, usptr); + pr_debug("new value %x at %p", get_unaligned(usptr), usptr); + break; - case FLAT_BFIN_RELOC_TYPE_16H_BIT: - put_unaligned(addr >> 16, usptr); - pr_debug("new value %x", get_unaligned(usptr)); - break; + case FLAT_BFIN_RELOC_TYPE_16H_BIT: + put_unaligned(addr >> 16, usptr); + pr_debug("new value %x", get_unaligned(usptr)); + break; - case FLAT_BFIN_RELOC_TYPE_32_BIT: - put_unaligned(addr, ptr); - pr_debug("new ptr =%lx", get_unaligned(ptr)); - break; + case FLAT_BFIN_RELOC_TYPE_32_BIT: + put_unaligned(addr, ptr); + pr_debug("new ptr =%lx", get_unaligned(ptr)); + break; } } EXPORT_SYMBOL(bfin_put_addr_at_rp); diff --git a/arch/blackfin/kernel/irqchip.c b/arch/blackfin/kernel/irqchip.c index 80996a1a94ca..1fc001c7abda 100644 --- a/arch/blackfin/kernel/irqchip.c +++ b/arch/blackfin/kernel/irqchip.c @@ -82,7 +82,7 @@ int show_interrupts(struct seq_file *p, void *v) seq_printf(p, ", %s", action->name); seq_putc(p, '\n'); - unlock: + unlock: spin_unlock_irqrestore(&irq_desc[i].lock, flags); } else if (i == NR_IRQS) { seq_printf(p, "Err: %10lu\n", irq_err_count); diff --git a/arch/blackfin/kernel/kgdb.c b/arch/blackfin/kernel/kgdb.c new file mode 100644 index 000000000000..a9c15515bfd7 --- /dev/null +++ b/arch/blackfin/kernel/kgdb.c @@ -0,0 +1,421 @@ +/* + * File: arch/blackfin/kernel/kgdb.c + * Based on: + * Author: Sonic Zhang + * + * Created: + * Description: + * + * Rev: $Id: kgdb_bfin_linux-2.6.x.patch 4934 2007-02-13 09:32:11Z sonicz $ + * + * Modified: + * Copyright 2005-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/string.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/smp.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/ptrace.h> /* for linux pt_regs struct */ +#include <linux/kgdb.h> +#include <linux/console.h> +#include <linux/init.h> +#include <linux/debugger.h> +#include <linux/errno.h> +#include <linux/irq.h> +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/blackfin.h> + +/* Put the error code here just in case the user cares. */ +int gdb_bf533errcode; +/* Likewise, the vector number here (since GDB only gets the signal + number through the usual means, and that's not very specific). */ +int gdb_bf533vector = -1; + +#if KGDB_MAX_NO_CPUS != 8 +#error change the definition of slavecpulocks +#endif + +void regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + gdb_regs[BFIN_R0] = regs->r0; + gdb_regs[BFIN_R1] = regs->r1; + gdb_regs[BFIN_R2] = regs->r2; + gdb_regs[BFIN_R3] = regs->r3; + gdb_regs[BFIN_R4] = regs->r4; + gdb_regs[BFIN_R5] = regs->r5; + gdb_regs[BFIN_R6] = regs->r6; + gdb_regs[BFIN_R7] = regs->r7; + gdb_regs[BFIN_P0] = regs->p0; + gdb_regs[BFIN_P1] = regs->p1; + gdb_regs[BFIN_P2] = regs->p2; + gdb_regs[BFIN_P3] = regs->p3; + gdb_regs[BFIN_P4] = regs->p4; + gdb_regs[BFIN_P5] = regs->p5; + gdb_regs[BFIN_SP] = regs->reserved; + gdb_regs[BFIN_FP] = regs->fp; + gdb_regs[BFIN_I0] = regs->i0; + gdb_regs[BFIN_I1] = regs->i1; + gdb_regs[BFIN_I2] = regs->i2; + gdb_regs[BFIN_I3] = regs->i3; + gdb_regs[BFIN_M0] = regs->m0; + gdb_regs[BFIN_M1] = regs->m1; + gdb_regs[BFIN_M2] = regs->m2; + gdb_regs[BFIN_M3] = regs->m3; + gdb_regs[BFIN_B0] = regs->b0; + gdb_regs[BFIN_B1] = regs->b1; + gdb_regs[BFIN_B2] = regs->b2; + gdb_regs[BFIN_B3] = regs->b3; + gdb_regs[BFIN_L0] = regs->l0; + gdb_regs[BFIN_L1] = regs->l1; + gdb_regs[BFIN_L2] = regs->l2; + gdb_regs[BFIN_L3] = regs->l3; + gdb_regs[BFIN_A0_DOT_X] = regs->a0x; + gdb_regs[BFIN_A0_DOT_W] = regs->a0w; + gdb_regs[BFIN_A1_DOT_X] = regs->a1x; + gdb_regs[BFIN_A1_DOT_W] = regs->a1w; + gdb_regs[BFIN_ASTAT] = regs->astat; + gdb_regs[BFIN_RETS] = regs->rets; + gdb_regs[BFIN_LC0] = regs->lc0; + gdb_regs[BFIN_LT0] = regs->lt0; + gdb_regs[BFIN_LB0] = regs->lb0; + gdb_regs[BFIN_LC1] = regs->lc1; + gdb_regs[BFIN_LT1] = regs->lt1; + gdb_regs[BFIN_LB1] = regs->lb1; + gdb_regs[BFIN_CYCLES] = 0; + gdb_regs[BFIN_CYCLES2] = 0; + gdb_regs[BFIN_USP] = regs->usp; + gdb_regs[BFIN_SEQSTAT] = regs->seqstat; + gdb_regs[BFIN_SYSCFG] = regs->syscfg; + gdb_regs[BFIN_RETI] = regs->pc; + gdb_regs[BFIN_RETX] = regs->retx; + gdb_regs[BFIN_RETN] = regs->retn; + gdb_regs[BFIN_RETE] = regs->rete; + gdb_regs[BFIN_PC] = regs->pc; + gdb_regs[BFIN_CC] = 0; + gdb_regs[BFIN_EXTRA1] = 0; + gdb_regs[BFIN_EXTRA2] = 0; + gdb_regs[BFIN_EXTRA3] = 0; + gdb_regs[BFIN_IPEND] = regs->ipend; +} + +/* + * Extracts ebp, esp and eip values understandable by gdb from the values + * saved by switch_to. + * thread.esp points to ebp. flags and ebp are pushed in switch_to hence esp + * prior to entering switch_to is 8 greater then the value that is saved. + * If switch_to changes, change following code appropriately. + */ +void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p) +{ + gdb_regs[BFIN_SP] = p->thread.ksp; + gdb_regs[BFIN_PC] = p->thread.pc; + gdb_regs[BFIN_SEQSTAT] = p->thread.seqstat; +} + +void gdb_regs_to_regs(unsigned long *gdb_regs, struct pt_regs *regs) +{ + regs->r0 = gdb_regs[BFIN_R0]; + regs->r1 = gdb_regs[BFIN_R1]; + regs->r2 = gdb_regs[BFIN_R2]; + regs->r3 = gdb_regs[BFIN_R3]; + regs->r4 = gdb_regs[BFIN_R4]; + regs->r5 = gdb_regs[BFIN_R5]; + regs->r6 = gdb_regs[BFIN_R6]; + regs->r7 = gdb_regs[BFIN_R7]; + regs->p0 = gdb_regs[BFIN_P0]; + regs->p1 = gdb_regs[BFIN_P1]; + regs->p2 = gdb_regs[BFIN_P2]; + regs->p3 = gdb_regs[BFIN_P3]; + regs->p4 = gdb_regs[BFIN_P4]; + regs->p5 = gdb_regs[BFIN_P5]; + regs->fp = gdb_regs[BFIN_FP]; + regs->i0 = gdb_regs[BFIN_I0]; + regs->i1 = gdb_regs[BFIN_I1]; + regs->i2 = gdb_regs[BFIN_I2]; + regs->i3 = gdb_regs[BFIN_I3]; + regs->m0 = gdb_regs[BFIN_M0]; + regs->m1 = gdb_regs[BFIN_M1]; + regs->m2 = gdb_regs[BFIN_M2]; + regs->m3 = gdb_regs[BFIN_M3]; + regs->b0 = gdb_regs[BFIN_B0]; + regs->b1 = gdb_regs[BFIN_B1]; + regs->b2 = gdb_regs[BFIN_B2]; + regs->b3 = gdb_regs[BFIN_B3]; + regs->l0 = gdb_regs[BFIN_L0]; + regs->l1 = gdb_regs[BFIN_L1]; + regs->l2 = gdb_regs[BFIN_L2]; + regs->l3 = gdb_regs[BFIN_L3]; + regs->a0x = gdb_regs[BFIN_A0_DOT_X]; + regs->a0w = gdb_regs[BFIN_A0_DOT_W]; + regs->a1x = gdb_regs[BFIN_A1_DOT_X]; + regs->a1w = gdb_regs[BFIN_A1_DOT_W]; + regs->rets = gdb_regs[BFIN_RETS]; + regs->lc0 = gdb_regs[BFIN_LC0]; + regs->lt0 = gdb_regs[BFIN_LT0]; + regs->lb0 = gdb_regs[BFIN_LB0]; + regs->lc1 = gdb_regs[BFIN_LC1]; + regs->lt1 = gdb_regs[BFIN_LT1]; + regs->lb1 = gdb_regs[BFIN_LB1]; + regs->usp = gdb_regs[BFIN_USP]; + regs->syscfg = gdb_regs[BFIN_SYSCFG]; + regs->retx = gdb_regs[BFIN_PC]; + regs->retn = gdb_regs[BFIN_RETN]; + regs->rete = gdb_regs[BFIN_RETE]; + regs->pc = gdb_regs[BFIN_PC]; + +#if 0 /* can't change these */ + regs->astat = gdb_regs[BFIN_ASTAT]; + regs->seqstat = gdb_regs[BFIN_SEQSTAT]; + regs->ipend = gdb_regs[BFIN_IPEND]; +#endif +} + +struct hw_breakpoint { + unsigned int occupied:1; + unsigned int skip:1; + unsigned int enabled:1; + unsigned int type:1; + unsigned int dataacc:2; + unsigned short count; + unsigned int addr; +} breakinfo[HW_BREAKPOINT_NUM]; + +int kgdb_arch_init(void) +{ + kgdb_remove_all_hw_break(); + return 0; +} + +int kgdb_set_hw_break(unsigned long addr) +{ + int breakno; + for (breakno = 0; breakno < HW_BREAKPOINT_NUM; breakno++) + if (!breakinfo[breakno].occupied) { + breakinfo[breakno].occupied = 1; + breakinfo[breakno].enabled = 1; + breakinfo[breakno].type = 1; + breakinfo[breakno].addr = addr; + return 0; + } + + return -ENOSPC; +} + +int kgdb_remove_hw_break(unsigned long addr) +{ + int breakno; + for (breakno = 0; breakno < HW_BREAKPOINT_NUM; breakno++) + if (breakinfo[breakno].addr == addr) + memset(&(breakinfo[breakno]), 0, sizeof(struct hw_breakpoint)); + + return 0; +} + +void kgdb_remove_all_hw_break(void) +{ + memset(breakinfo, 0, sizeof(struct hw_breakpoint)*8); +} + +/* +void kgdb_show_info(void) +{ + printk(KERN_DEBUG "hwd: wpia0=0x%x, wpiacnt0=%d, wpiactl=0x%x, wpstat=0x%x\n", + bfin_read_WPIA0(), bfin_read_WPIACNT0(), + bfin_read_WPIACTL(), bfin_read_WPSTAT()); +} +*/ + +void kgdb_correct_hw_break(void) +{ + int breakno; + int correctit; + uint32_t wpdactl = bfin_read_WPDACTL(); + + correctit = 0; + for (breakno = 0; breakno < HW_BREAKPOINT_NUM; breakno++) { + if (breakinfo[breakno].type == 1) { + switch (breakno) { + case 0: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN0)) { + correctit = 1; + wpdactl &= ~(WPIREN01|EMUSW0); + wpdactl |= WPIAEN0|WPICNTEN0; + bfin_write_WPIA0(breakinfo[breakno].addr); + bfin_write_WPIACNT0(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN0)) { + correctit = 1; + wpdactl &= ~WPIAEN0; + } + break; + + case 1: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN1)) { + correctit = 1; + wpdactl &= ~(WPIREN01|EMUSW1); + wpdactl |= WPIAEN1|WPICNTEN1; + bfin_write_WPIA1(breakinfo[breakno].addr); + bfin_write_WPIACNT1(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN1)) { + correctit = 1; + wpdactl &= ~WPIAEN1; + } + break; + + case 2: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN2)) { + correctit = 1; + wpdactl &= ~(WPIREN23|EMUSW2); + wpdactl |= WPIAEN2|WPICNTEN2; + bfin_write_WPIA2(breakinfo[breakno].addr); + bfin_write_WPIACNT2(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN2)) { + correctit = 1; + wpdactl &= ~WPIAEN2; + } + break; + + case 3: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN3)) { + correctit = 1; + wpdactl &= ~(WPIREN23|EMUSW3); + wpdactl |= WPIAEN3|WPICNTEN3; + bfin_write_WPIA3(breakinfo[breakno].addr); + bfin_write_WPIACNT3(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN3)) { + correctit = 1; + wpdactl &= ~WPIAEN3; + } + break; + case 4: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN4)) { + correctit = 1; + wpdactl &= ~(WPIREN45|EMUSW4); + wpdactl |= WPIAEN4|WPICNTEN4; + bfin_write_WPIA4(breakinfo[breakno].addr); + bfin_write_WPIACNT4(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN4)) { + correctit = 1; + wpdactl &= ~WPIAEN4; + } + break; + case 5: + if (breakinfo[breakno].enabled && !(wpdactl & WPIAEN5)) { + correctit = 1; + wpdactl &= ~(WPIREN45|EMUSW5); + wpdactl |= WPIAEN5|WPICNTEN5; + bfin_write_WPIA5(breakinfo[breakno].addr); + bfin_write_WPIACNT5(breakinfo[breakno].skip); + } else if (!breakinfo[breakno].enabled && (wpdactl & WPIAEN5)) { + correctit = 1; + wpdactl &= ~WPIAEN5; + } + break; + } + } + } + if (correctit) { + wpdactl &= ~WPAND; + wpdactl |= WPPWR; + /*printk("correct_hw_break: wpdactl=0x%x\n", wpdactl);*/ + bfin_write_WPDACTL(wpdactl); + CSYNC(); + /*kgdb_show_info();*/ + } +} + +void kgdb_disable_hw_debug(struct pt_regs *regs) +{ + /* Disable hardware debugging while we are in kgdb */ + bfin_write_WPIACTL(bfin_read_WPIACTL() & ~0x1); + CSYNC(); +} + +void kgdb_post_master_code(struct pt_regs *regs, int eVector, int err_code) +{ + /* Master processor is completely in the debugger */ + gdb_bf533vector = eVector; + gdb_bf533errcode = err_code; +} + +int kgdb_arch_handle_exception(int exceptionVector, int signo, + int err_code, char *remcom_in_buffer, + char *remcom_out_buffer, + struct pt_regs *linux_regs) +{ + long addr; + long breakno; + char *ptr; + int newPC; + int wp_status; + + switch (remcom_in_buffer[0]) { + case 'c': + case 's': + if (kgdb_contthread && kgdb_contthread != current) { + strcpy(remcom_out_buffer, "E00"); + break; + } + + kgdb_contthread = NULL; + + /* try to read optional parameter, pc unchanged if no parm */ + ptr = &remcom_in_buffer[1]; + if (kgdb_hex2long(&ptr, &addr)) { + linux_regs->retx = addr; + } + newPC = linux_regs->retx; + + /* clear the trace bit */ + linux_regs->syscfg &= 0xfffffffe; + + /* set the trace bit if we're stepping */ + if (remcom_in_buffer[0] == 's') { + linux_regs->syscfg |= 0x1; + debugger_step = 1; + } + + wp_status = bfin_read_WPSTAT(); + CSYNC(); + + if (exceptionVector == VEC_WATCH) { + for (breakno = 0; breakno < 6; ++breakno) { + if (wp_status & (1 << breakno)) { + breakinfo->skip = 1; + break; + } + } + } + kgdb_correct_hw_break(); + + bfin_write_WPSTAT(0); + + return 0; + } /* switch */ + return -1; /* this means that we do not want to exit from the handler */ +} + +struct kgdb_arch arch_kgdb_ops = { + .gdb_bpt_instr = {0xa1}, + .flags = KGDB_HW_BREAKPOINT, +}; diff --git a/arch/blackfin/kernel/module.c b/arch/blackfin/kernel/module.c index 372f756f1ad9..8b9fe29d03f4 100644 --- a/arch/blackfin/kernel/module.c +++ b/arch/blackfin/kernel/module.c @@ -165,8 +165,8 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, for (s = sechdrs; s < sechdrs_end; ++s) { if ((strcmp(".l1.text", secstrings + s->sh_name) == 0) || - ((strcmp(".text", secstrings + s->sh_name)==0) && - (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) { + ((strcmp(".text", secstrings + s->sh_name) == 0) && + (hdr->e_flags & FLG_CODE_IN_L1) && (s->sh_size > 0))) { mod->arch.text_l1 = s; dest = l1_inst_sram_alloc(s->sh_size); if (dest == NULL) { @@ -179,9 +179,9 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, s->sh_flags &= ~SHF_ALLOC; s->sh_addr = (unsigned long)dest; } - if ((strcmp(".l1.data", secstrings + s->sh_name) == 0)|| - ((strcmp(".data", secstrings + s->sh_name)==0) && - (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + if ((strcmp(".l1.data", secstrings + s->sh_name) == 0) || + ((strcmp(".data", secstrings + s->sh_name) == 0) && + (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { mod->arch.data_a_l1 = s; dest = l1_data_sram_alloc(s->sh_size); if (dest == NULL) { @@ -195,8 +195,8 @@ module_frob_arch_sections(Elf_Ehdr * hdr, Elf_Shdr * sechdrs, s->sh_addr = (unsigned long)dest; } if (strcmp(".l1.bss", secstrings + s->sh_name) == 0 || - ((strcmp(".bss", secstrings + s->sh_name)==0) && - (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { + ((strcmp(".bss", secstrings + s->sh_name) == 0) && + (hdr->e_flags & FLG_DATA_IN_L1) && (s->sh_size > 0))) { mod->arch.bss_a_l1 = s; dest = l1_data_sram_alloc(s->sh_size); if (dest == NULL) { @@ -326,7 +326,7 @@ apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab, pr_debug("before %x after %x\n", *location16, (value & 0xffff)); tmp = (value & 0xffff); - if((unsigned long)location16 >= L1_CODE_START) { + if ((unsigned long)location16 >= L1_CODE_START) { dma_memcpy(location16, &tmp, 2); } else *location16 = tmp; @@ -335,7 +335,7 @@ apply_relocate_add(Elf_Shdr * sechdrs, const char *strtab, pr_debug("before %x after %x\n", *location16, ((value >> 16) & 0xffff)); tmp = ((value >> 16) & 0xffff); - if((unsigned long)location16 >= L1_CODE_START) { + if ((unsigned long)location16 >= L1_CODE_START) { dma_memcpy(location16, &tmp, 2); } else *location16 = tmp; @@ -404,8 +404,8 @@ module_finalize(const Elf_Ehdr * hdr, continue; if ((sechdrs[i].sh_type == SHT_RELA) && - ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0)|| - ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) && + ((strcmp(".rela.l1.text", secstrings + sechdrs[i].sh_name) == 0) || + ((strcmp(".rela.text", secstrings + sechdrs[i].sh_name) == 0) && (hdr->e_flags & FLG_CODE_IN_L1)))) { apply_relocate_add((Elf_Shdr *) sechdrs, strtab, symindex, i, mod); @@ -417,13 +417,13 @@ module_finalize(const Elf_Ehdr * hdr, void module_arch_cleanup(struct module *mod) { if ((mod->arch.text_l1) && (mod->arch.text_l1->sh_addr)) - l1_inst_sram_free((void*)mod->arch.text_l1->sh_addr); + l1_inst_sram_free((void *)mod->arch.text_l1->sh_addr); if ((mod->arch.data_a_l1) && (mod->arch.data_a_l1->sh_addr)) - l1_data_sram_free((void*)mod->arch.data_a_l1->sh_addr); + l1_data_sram_free((void *)mod->arch.data_a_l1->sh_addr); if ((mod->arch.bss_a_l1) && (mod->arch.bss_a_l1->sh_addr)) - l1_data_sram_free((void*)mod->arch.bss_a_l1->sh_addr); + l1_data_sram_free((void *)mod->arch.bss_a_l1->sh_addr); if ((mod->arch.data_b_l1) && (mod->arch.data_b_l1->sh_addr)) - l1_data_B_sram_free((void*)mod->arch.data_b_l1->sh_addr); + l1_data_B_sram_free((void *)mod->arch.data_b_l1->sh_addr); if ((mod->arch.bss_b_l1) && (mod->arch.bss_b_l1->sh_addr)) - l1_data_B_sram_free((void*)mod->arch.bss_b_l1->sh_addr); + l1_data_B_sram_free((void *)mod->arch.bss_b_l1->sh_addr); } diff --git a/arch/blackfin/kernel/process.c b/arch/blackfin/kernel/process.c index 3eff7439d8d3..5a51dd6ab280 100644 --- a/arch/blackfin/kernel/process.c +++ b/arch/blackfin/kernel/process.c @@ -32,9 +32,10 @@ #include <linux/unistd.h> #include <linux/user.h> #include <linux/a.out.h> +#include <linux/uaccess.h> #include <asm/blackfin.h> -#include <asm/uaccess.h> +#include <asm/fixed_code.h> #define LED_ON 0 #define LED_OFF 1 @@ -173,8 +174,8 @@ void show_regs(struct pt_regs *regs) printk(KERN_NOTICE "R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", regs->r4, regs->r5, regs->r6, regs->r7); - if (!(regs->ipend)) - printk("USP: %08lx\n", rdusp()); + if (!regs->ipend) + printk(KERN_NOTICE "USP: %08lx\n", rdusp()); } /* Fill in the fpu structure for a core dump. */ @@ -322,7 +323,7 @@ asmlinkage int sys_execve(char *name, char **argv, char **envp) goto out; error = do_execve(filename, argv, envp, regs); putname(filename); - out: + out: unlock_kernel(); return error; } @@ -350,13 +351,77 @@ unsigned long get_wchan(struct task_struct *p) return 0; } +void finish_atomic_sections (struct pt_regs *regs) +{ + if (regs->pc < ATOMIC_SEQS_START || regs->pc >= ATOMIC_SEQS_END) + return; + + switch (regs->pc) { + case ATOMIC_XCHG32 + 2: + put_user(regs->r1, (int *)regs->p0); + regs->pc += 2; + break; + + case ATOMIC_CAS32 + 2: + case ATOMIC_CAS32 + 4: + if (regs->r0 == regs->r1) + put_user(regs->r2, (int *)regs->p0); + regs->pc = ATOMIC_CAS32 + 8; + break; + case ATOMIC_CAS32 + 6: + put_user(regs->r2, (int *)regs->p0); + regs->pc += 2; + break; + + case ATOMIC_ADD32 + 2: + regs->r0 = regs->r1 + regs->r0; + /* fall through */ + case ATOMIC_ADD32 + 4: + put_user(regs->r0, (int *)regs->p0); + regs->pc = ATOMIC_ADD32 + 6; + break; + + case ATOMIC_SUB32 + 2: + regs->r0 = regs->r1 - regs->r0; + /* fall through */ + case ATOMIC_SUB32 + 4: + put_user(regs->r0, (int *)regs->p0); + regs->pc = ATOMIC_SUB32 + 6; + break; + + case ATOMIC_IOR32 + 2: + regs->r0 = regs->r1 | regs->r0; + /* fall through */ + case ATOMIC_IOR32 + 4: + put_user(regs->r0, (int *)regs->p0); + regs->pc = ATOMIC_IOR32 + 6; + break; + + case ATOMIC_AND32 + 2: + regs->r0 = regs->r1 & regs->r0; + /* fall through */ + case ATOMIC_AND32 + 4: + put_user(regs->r0, (int *)regs->p0); + regs->pc = ATOMIC_AND32 + 6; + break; + + case ATOMIC_XOR32 + 2: + regs->r0 = regs->r1 ^ regs->r0; + /* fall through */ + case ATOMIC_XOR32 + 4: + put_user(regs->r0, (int *)regs->p0); + regs->pc = ATOMIC_XOR32 + 6; + break; + } +} + #if defined(CONFIG_ACCESS_CHECK) int _access_ok(unsigned long addr, unsigned long size) { if (addr > (addr + size)) return 0; - if (segment_eq(get_fs(),KERNEL_DS)) + if (segment_eq(get_fs(), KERNEL_DS)) return 1; #ifdef CONFIG_MTD_UCLINUX if (addr >= memory_start && (addr + size) <= memory_end) diff --git a/arch/blackfin/kernel/ptrace.c b/arch/blackfin/kernel/ptrace.c index e718bb4a1ef0..ed800c7456dd 100644 --- a/arch/blackfin/kernel/ptrace.c +++ b/arch/blackfin/kernel/ptrace.c @@ -36,8 +36,8 @@ #include <linux/ptrace.h> #include <linux/user.h> #include <linux/signal.h> +#include <linux/uaccess.h> -#include <asm/uaccess.h> #include <asm/page.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -122,7 +122,7 @@ static inline long get_reg(struct task_struct *task, int regno) static inline int put_reg(struct task_struct *task, int regno, unsigned long data) { - char * reg_ptr; + char *reg_ptr; struct pt_regs *regs = (struct pt_regs *)((unsigned long)task_stack_page(task) + @@ -146,7 +146,7 @@ put_reg(struct task_struct *task, int regno, unsigned long data) break; default: if (regno <= 216) - *(long *)(reg_ptr + regno) = data; + *(long *)(reg_ptr + regno) = data; } return 0; } diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index 83060f98d15d..f59dcee7bae3 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -42,6 +42,7 @@ #include <asm/cacheflush.h> #include <asm/blackfin.h> #include <asm/cplbinit.h> +#include <asm/fixed_code.h> u16 _bfin_swrst; @@ -63,10 +64,6 @@ EXPORT_SYMBOL(mtd_size); char __initdata command_line[COMMAND_LINE_SIZE]; -#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) -static void generate_cpl_tables(void); -#endif - void __init bf53x_cache_init(void) { #if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) @@ -197,6 +194,17 @@ void __init setup_arch(char **cmdline_p) /* this give a chance to get printk() working before crash. */ #endif + printk(KERN_INFO "Hardware Trace "); + if (bfin_read_TBUFCTL() & 0x1 ) + printk("Active "); + else + printk("Off "); + if (bfin_read_TBUFCTL() & 0x2) + printk("and Enabled\n"); + else + printk("and Disabled\n"); + + #if defined(CONFIG_CHR_DEV_FLASH) || defined(CONFIG_BLK_DEV_FLASH) /* we need to initialize the Flashrom device here since we might * do things with flash early on in the boot @@ -354,15 +362,15 @@ void __init setup_arch(char **cmdline_p) , _stext, _etext, __start_rodata, __end_rodata, _sdata, _edata, - (void*)&init_thread_union, (void*)((int)(&init_thread_union) + 0x2000), + (void *)&init_thread_union, (void *)((int)(&init_thread_union) + 0x2000), __init_begin, __init_end, __bss_start, __bss_stop, - (void*)_ramstart, (void*)memory_end + (void *)_ramstart, (void *)memory_end #ifdef CONFIG_MTD_UCLINUX - , (void*)memory_mtd_start, (void*)(memory_mtd_start + mtd_size) + , (void *)memory_mtd_start, (void *)(memory_mtd_start + mtd_size) #endif #if DMA_UNCACHED_REGION > 0 - , (void*)(_ramend - DMA_UNCACHED_REGION), (void*)(_ramend) + , (void *)(_ramend - DMA_UNCACHED_REGION), (void *)(_ramend) #endif ); @@ -388,11 +396,11 @@ void __init setup_arch(char **cmdline_p) /* check the size of the l1 area */ l1_length = _etext_l1 - _stext_l1; if (l1_length > L1_CODE_LENGTH) - panic("L1 memory overflow\n"); + panic("L1 code memory overflow\n"); l1_length = _ebss_l1 - _sdata_l1; if (l1_length > L1_DATA_A_LENGTH) - panic("L1 memory overflow\n"); + panic("L1 data memory overflow\n"); #ifdef BF561_FAMILY _bfin_swrst = bfin_read_SICA_SWRST(); @@ -400,10 +408,28 @@ void __init setup_arch(char **cmdline_p) _bfin_swrst = bfin_read_SWRST(); #endif - bf53x_cache_init(); + /* Copy atomic sequences to their fixed location, and sanity check that + these locations are the ones that we advertise to userspace. */ + memcpy((void *)FIXED_CODE_START, &fixed_code_start, + FIXED_CODE_END - FIXED_CODE_START); + BUG_ON((char *)&sigreturn_stub - (char *)&fixed_code_start + != SIGRETURN_STUB - FIXED_CODE_START); + BUG_ON((char *)&atomic_xchg32 - (char *)&fixed_code_start + != ATOMIC_XCHG32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_cas32 - (char *)&fixed_code_start + != ATOMIC_CAS32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_add32 - (char *)&fixed_code_start + != ATOMIC_ADD32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_sub32 - (char *)&fixed_code_start + != ATOMIC_SUB32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_ior32 - (char *)&fixed_code_start + != ATOMIC_IOR32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_and32 - (char *)&fixed_code_start + != ATOMIC_AND32 - FIXED_CODE_START); + BUG_ON((char *)&atomic_xor32 - (char *)&fixed_code_start + != ATOMIC_XOR32 - FIXED_CODE_START); - printk(KERN_INFO "Hardware Trace Enabled\n"); - bfin_write_TBUFCTL(0x03); + bf53x_cache_init(); } static int __init topology_init(void) @@ -421,286 +447,6 @@ static int __init topology_init(void) subsys_initcall(topology_init); -#if defined(CONFIG_BLKFIN_DCACHE) || defined(CONFIG_BLKFIN_CACHE) -static u16 __init lock_kernel_check(u32 start, u32 end) -{ - if ((start <= (u32) _stext && end >= (u32) _end) - || (start >= (u32) _stext && end <= (u32) _end)) - return IN_KERNEL; - return 0; -} - -static unsigned short __init -fill_cplbtab(struct cplb_tab *table, - unsigned long start, unsigned long end, - unsigned long block_size, unsigned long cplb_data) -{ - int i; - - switch (block_size) { - case SIZE_4M: - i = 3; - break; - case SIZE_1M: - i = 2; - break; - case SIZE_4K: - i = 1; - break; - case SIZE_1K: - default: - i = 0; - break; - } - - cplb_data = (cplb_data & ~(3 << 16)) | (i << 16); - - while ((start < end) && (table->pos < table->size)) { - - table->tab[table->pos++] = start; - - if (lock_kernel_check(start, start + block_size) == IN_KERNEL) - table->tab[table->pos++] = - cplb_data | CPLB_LOCK | CPLB_DIRTY; - else - table->tab[table->pos++] = cplb_data; - - start += block_size; - } - return 0; -} - -static unsigned short __init -close_cplbtab(struct cplb_tab *table) -{ - - while (table->pos < table->size) { - - table->tab[table->pos++] = 0; - table->tab[table->pos++] = 0; /* !CPLB_VALID */ - } - return 0; -} - -/* helper function */ -static void __fill_code_cplbtab(struct cplb_tab *t, int i, - u32 a_start, u32 a_end) -{ - if (cplb_data[i].psize) { - fill_cplbtab(t, - cplb_data[i].start, - cplb_data[i].end, - cplb_data[i].psize, - cplb_data[i].i_conf); - } else { -#if (defined(CONFIG_BLKFIN_CACHE) && defined(ANOMALY_05000263)) - if (i == SDRAM_KERN) { - fill_cplbtab(t, - cplb_data[i].start, - cplb_data[i].end, - SIZE_4M, - cplb_data[i].i_conf); - } else { -#endif - fill_cplbtab(t, - cplb_data[i].start, - a_start, - SIZE_1M, - cplb_data[i].i_conf); - fill_cplbtab(t, - a_start, - a_end, - SIZE_4M, - cplb_data[i].i_conf); - fill_cplbtab(t, a_end, - cplb_data[i].end, - SIZE_1M, - cplb_data[i].i_conf); - } - } -} - -static void __fill_data_cplbtab(struct cplb_tab *t, int i, - u32 a_start, u32 a_end) -{ - if (cplb_data[i].psize) { - fill_cplbtab(t, - cplb_data[i].start, - cplb_data[i].end, - cplb_data[i].psize, - cplb_data[i].d_conf); - } else { - fill_cplbtab(t, - cplb_data[i].start, - a_start, SIZE_1M, - cplb_data[i].d_conf); - fill_cplbtab(t, a_start, - a_end, SIZE_4M, - cplb_data[i].d_conf); - fill_cplbtab(t, a_end, - cplb_data[i].end, - SIZE_1M, - cplb_data[i].d_conf); - } -} -static void __init generate_cpl_tables(void) -{ - - u16 i, j, process; - u32 a_start, a_end, as, ae, as_1m; - - struct cplb_tab *t_i = NULL; - struct cplb_tab *t_d = NULL; - struct s_cplb cplb; - - cplb.init_i.size = MAX_CPLBS; - cplb.init_d.size = MAX_CPLBS; - cplb.switch_i.size = MAX_SWITCH_I_CPLBS; - cplb.switch_d.size = MAX_SWITCH_D_CPLBS; - - cplb.init_i.pos = 0; - cplb.init_d.pos = 0; - cplb.switch_i.pos = 0; - cplb.switch_d.pos = 0; - - cplb.init_i.tab = icplb_table; - cplb.init_d.tab = dcplb_table; - cplb.switch_i.tab = ipdt_table; - cplb.switch_d.tab = dpdt_table; - - cplb_data[SDRAM_KERN].end = memory_end; - -#ifdef CONFIG_MTD_UCLINUX - cplb_data[SDRAM_RAM_MTD].start = memory_mtd_start; - cplb_data[SDRAM_RAM_MTD].end = memory_mtd_start + mtd_size; - cplb_data[SDRAM_RAM_MTD].valid = mtd_size > 0; -# if defined(CONFIG_ROMFS_FS) - cplb_data[SDRAM_RAM_MTD].attr |= I_CPLB; - - /* - * The ROMFS_FS size is often not multiple of 1MB. - * This can cause multiple CPLB sets covering the same memory area. - * This will then cause multiple CPLB hit exceptions. - * Workaround: We ensure a contiguous memory area by extending the kernel - * memory section over the mtd section. - * For ROMFS_FS memory must be covered with ICPLBs anyways. - * So there is no difference between kernel and mtd memory setup. - */ - - cplb_data[SDRAM_KERN].end = memory_mtd_start + mtd_size;; - cplb_data[SDRAM_RAM_MTD].valid = 0; - -# endif -#else - cplb_data[SDRAM_RAM_MTD].valid = 0; -#endif - - cplb_data[SDRAM_DMAZ].start = _ramend - DMA_UNCACHED_REGION; - cplb_data[SDRAM_DMAZ].end = _ramend; - - cplb_data[RES_MEM].start = _ramend; - cplb_data[RES_MEM].end = physical_mem_end; - - if (reserved_mem_dcache_on) - cplb_data[RES_MEM].d_conf = SDRAM_DGENERIC; - else - cplb_data[RES_MEM].d_conf = SDRAM_DNON_CHBL; - - if (reserved_mem_icache_on) - cplb_data[RES_MEM].i_conf = SDRAM_IGENERIC; - else - cplb_data[RES_MEM].i_conf = SDRAM_INON_CHBL; - - for (i = ZERO_P; i <= L2_MEM; i++) { - if (!cplb_data[i].valid) - continue; - - as_1m = cplb_data[i].start % SIZE_1M; - - /* - * We need to make sure all sections are properly 1M aligned - * However between Kernel Memory and the Kernel mtd section, - * depending on the rootfs size, there can be overlapping - * memory areas. - */ - - if (as_1m && i != L1I_MEM && i != L1D_MEM) { -#ifdef CONFIG_MTD_UCLINUX - if (i == SDRAM_RAM_MTD) { - if ((cplb_data[SDRAM_KERN].end + 1) > - cplb_data[SDRAM_RAM_MTD].start) - cplb_data[SDRAM_RAM_MTD].start = - (cplb_data[i].start & - (-2*SIZE_1M)) + SIZE_1M; - else - cplb_data[SDRAM_RAM_MTD].start = - (cplb_data[i].start & - (-2*SIZE_1M)); - } else -#endif - printk(KERN_WARNING - "Unaligned Start of %s at 0x%X\n", - cplb_data[i].name, cplb_data[i].start); - } - - as = cplb_data[i].start % SIZE_4M; - ae = cplb_data[i].end % SIZE_4M; - - if (as) - a_start = cplb_data[i].start + (SIZE_4M - (as)); - else - a_start = cplb_data[i].start; - - a_end = cplb_data[i].end - ae; - - for (j = INITIAL_T; j <= SWITCH_T; j++) { - - switch (j) { - case INITIAL_T: - if (cplb_data[i].attr & INITIAL_T) { - t_i = &cplb.init_i; - t_d = &cplb.init_d; - process = 1; - } else - process = 0; - break; - case SWITCH_T: - if (cplb_data[i].attr & SWITCH_T) { - t_i = &cplb.switch_i; - t_d = &cplb.switch_d; - process = 1; - } else - process = 0; - break; - default: - process = 0; - break; - } - - if (!process) - continue; - if (cplb_data[i].attr & I_CPLB) - __fill_code_cplbtab(t_i, i, a_start, a_end); - - if (cplb_data[i].attr & D_CPLB) - __fill_data_cplbtab(t_d, i, a_start, a_end); - } - } - -/* close tables */ - - close_cplbtab(&cplb.init_i); - close_cplbtab(&cplb.init_d); - - cplb.init_i.tab[cplb.init_i.pos] = -1; - cplb.init_d.tab[cplb.init_d.pos] = -1; - cplb.switch_i.tab[cplb.switch_i.pos] = -1; - cplb.switch_d.tab[cplb.switch_d.pos] = -1; - -} - -#endif - static u_long get_vco(void) { u_long msel; @@ -730,7 +476,6 @@ u_long get_cclk(void) return get_vco() / ssel; return get_vco() >> csel; } - EXPORT_SYMBOL(get_cclk); /* Get the System clock */ @@ -749,7 +494,6 @@ u_long get_sclk(void) return get_vco() / ssel; } - EXPORT_SYMBOL(get_sclk); /* @@ -804,23 +548,23 @@ static int show_cpuinfo(struct seq_file *m, void *v) seq_printf(m, "D-CACHE:\tOFF\n"); - switch(bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) { - case ACACHE_BSRAM: - seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n"); - dcache_size = 16; - dsup_banks = 1; - break; - case ACACHE_BCACHE: - seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n"); - dcache_size = 32; - dsup_banks = 2; - break; - case ASRAM_BSRAM: - seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n"); - dcache_size = 0; - dsup_banks = 0; - break; - default: + switch (bfin_read_DMEM_CONTROL() & (1 << DMC0_P | 1 << DMC1_P)) { + case ACACHE_BSRAM: + seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tSRAM\n"); + dcache_size = 16; + dsup_banks = 1; + break; + case ACACHE_BCACHE: + seq_printf(m, "DBANK-A:\tCACHE\n" "DBANK-B:\tCACHE\n"); + dcache_size = 32; + dsup_banks = 2; + break; + case ASRAM_BSRAM: + seq_printf(m, "DBANK-A:\tSRAM\n" "DBANK-B:\tSRAM\n"); + dcache_size = 0; + dsup_banks = 0; + break; + default: break; } diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index 316e65c3439d..5564c9588aa8 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -34,8 +34,8 @@ #include <linux/personality.h> #include <linux/binfmts.h> #include <linux/freezer.h> +#include <linux/uaccess.h> -#include <asm/uaccess.h> #include <asm/cacheflush.h> #include <asm/ucontext.h> @@ -124,7 +124,7 @@ asmlinkage int do_rt_sigreturn(unsigned long __unused) return r0; - badframe: + badframe: force_sig(SIGSEGV, current); return 0; } @@ -239,7 +239,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, return 0; - give_sigsegv: + give_sigsegv: if (sig == SIGSEGV) ka->sa.sa_handler = SIG_DFL; force_sig(SIGSEGV, current); @@ -263,7 +263,7 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) } /* fallthrough */ case -ERESTARTNOINTR: - do_restart: + do_restart: regs->p0 = regs->orig_p0; regs->r0 = regs->orig_r0; regs->pc -= 2; @@ -341,7 +341,7 @@ asmlinkage void do_signal(struct pt_regs *regs) return; } -no_signal: + no_signal: /* Did we come from a system call? */ if (regs->orig_p0 >= 0) /* Restart the system call - no handlers present */ diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c index f436e6743f5a..f5e1ae3d1705 100644 --- a/arch/blackfin/kernel/sys_bfin.c +++ b/arch/blackfin/kernel/sys_bfin.c @@ -37,12 +37,12 @@ #include <linux/syscalls.h> #include <linux/mman.h> #include <linux/file.h> +#include <linux/uaccess.h> +#include <linux/ipc.h> +#include <linux/unistd.h> #include <asm/cacheflush.h> -#include <asm/uaccess.h> -#include <asm/ipc.h> #include <asm/dma.h> -#include <asm/unistd.h> /* * sys_pipe() is the normal C calling standard for creating @@ -83,7 +83,7 @@ do_mmap2(unsigned long addr, unsigned long len, if (file) fput(file); - out: + out: return error; } diff --git a/arch/blackfin/kernel/time.c b/arch/blackfin/kernel/time.c index f578176b6d92..beef057bd1dc 100644 --- a/arch/blackfin/kernel/time.c +++ b/arch/blackfin/kernel/time.c @@ -87,7 +87,7 @@ void __init init_leds(void) static inline void do_leds(void) { static unsigned int count = 50; - static int flag = 0; + static int flag; unsigned short tmp = 0; if (--count == 0) { @@ -200,7 +200,7 @@ irqreturn_t timer_interrupt(int irq, void *dummy)__attribute__((l1_text)); irqreturn_t timer_interrupt(int irq, void *dummy) { /* last time the cmos clock got updated */ - static long last_rtc_update = 0; + static long last_rtc_update; write_seqlock(&xtime_lock); diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c index 56058b0b6d4a..3909f5b35536 100644 --- a/arch/blackfin/kernel/traps.c +++ b/arch/blackfin/kernel/traps.c @@ -27,15 +27,15 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ -#include <asm/uaccess.h> +#include <linux/uaccess.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/kallsyms.h> #include <asm/traps.h> #include <asm/cacheflush.h> #include <asm/blackfin.h> -#include <asm/uaccess.h> #include <asm/irq_handler.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/kallsyms.h> +#include <asm/trace.h> #ifdef CONFIG_KGDB # include <linux/debugger.h> @@ -76,7 +76,7 @@ static int printk_address(unsigned long address) if (!modname) modname = delim = ""; return printk("<0x%p> { %s%s%s%s + 0x%lx }", - (void*)address, delim, modname, delim, symname, + (void *)address, delim, modname, delim, symname, (unsigned long)offset); } @@ -119,7 +119,7 @@ static int printk_address(unsigned long address) write_unlock_irq(&tasklist_lock); return printk("<0x%p> [ %s + 0x%lx ]", - (void*)address, name, offset); + (void *)address, name, offset); } vml = vml->next; @@ -128,19 +128,9 @@ static int printk_address(unsigned long address) write_unlock_irq(&tasklist_lock); /* we were unable to find this address anywhere */ - return printk("[<0x%p>]", (void*)address); + return printk("[<0x%p>]", (void *)address); } -#define trace_buffer_save(x) \ - do { \ - (x) = bfin_read_TBUFCTL(); \ - bfin_write_TBUFCTL((x) & ~TBUFEN); \ - } while (0) -#define trace_buffer_restore(x) \ - do { \ - bfin_write_TBUFCTL((x)); \ - } while (0) - asmlinkage void trap_c(struct pt_regs *fp) { int j, sig = 0; @@ -203,15 +193,14 @@ asmlinkage void trap_c(struct pt_regs *fp) #else /* 0x02 - User Defined, Caught by default */ #endif - /* 0x03 - Atomic test and set */ + /* 0x03 - User Defined, userspace stack overflow */ case VEC_EXCPT03: info.si_code = SEGV_STACKFLOW; sig = SIGSEGV; printk(KERN_EMERG EXC_0x03); CHK_DEBUGGER_TRAP(); break; - /* 0x04 - spinlock - handled by _ex_spinlock, - getting here is an error */ + /* 0x04 - User Defined, Caught by default */ /* 0x05 - User Defined, Caught by default */ /* 0x06 - User Defined, Caught by default */ /* 0x07 - User Defined, Caught by default */ @@ -547,29 +536,28 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr) printk(KERN_EMERG "TEXT = 0x%p-0x%p DATA = 0x%p-0x%p\n" KERN_EMERG "BSS = 0x%p-0x%p USER-STACK = 0x%p\n" KERN_EMERG "\n", - (void*)current->mm->start_code, - (void*)current->mm->end_code, - (void*)current->mm->start_data, - (void*)current->mm->end_data, - (void*)current->mm->end_data, - (void*)current->mm->brk, - (void*)current->mm->start_stack); + (void *)current->mm->start_code, + (void *)current->mm->end_code, + (void *)current->mm->start_data, + (void *)current->mm->end_data, + (void *)current->mm->end_data, + (void *)current->mm->brk, + (void *)current->mm->start_stack); } printk(KERN_EMERG "return address: [0x%p]; contents of:", retaddr); - if (retaddr != 0 && retaddr <= (void*)physical_mem_end + if (retaddr != 0 && retaddr <= (void *)physical_mem_end #if L1_CODE_LENGTH != 0 /* FIXME: Copy the code out of L1 Instruction SRAM through dma memcpy. */ - && !(retaddr >= (void*)L1_CODE_START - && retaddr < (void*)(L1_CODE_START + L1_CODE_LENGTH)) + && !(retaddr >= (void *)L1_CODE_START + && retaddr < (void *)(L1_CODE_START + L1_CODE_LENGTH)) #endif ) { int i = ((unsigned int)retaddr & 0xFFFFFFF0) - 32; unsigned short x = 0; - for (; i < ((unsigned int)retaddr & 0xFFFFFFF0 ) + 32 ; - i += 2) { - if ( !(i & 0xF) ) + for (; i < ((unsigned int)retaddr & 0xFFFFFFF0) + 32; i += 2) { + if (!(i & 0xF)) printk(KERN_EMERG "\n" KERN_EMERG "0x%08x: ", i); @@ -588,7 +576,7 @@ void dump_bfin_regs(struct pt_regs *fp, void *retaddr) " The rest of this error" " is meanless\n"); #endif - if ( i == (unsigned int)retaddr ) + if (i == (unsigned int)retaddr) printk("[%04x]", x); else printk(" %04x ", x); @@ -681,8 +669,8 @@ void panic_cplb_error(int cplb_panic, struct pt_regs *fp) break; } - printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void*)bfin_read_DCPLB_FAULT_ADDR()); - printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void*)bfin_read_ICPLB_FAULT_ADDR()); + printk(KERN_EMERG "DCPLB_FAULT_ADDR=%p\n", (void *)bfin_read_DCPLB_FAULT_ADDR()); + printk(KERN_EMERG "ICPLB_FAULT_ADDR=%p\n", (void *)bfin_read_ICPLB_FAULT_ADDR()); dump_bfin_regs(fp, (void *)fp->retx); dump_stack(); panic("Unrecoverable event\n"); diff --git a/arch/blackfin/kernel/vmlinux.lds.S b/arch/blackfin/kernel/vmlinux.lds.S index 1ef1e36b3957..d06f860f4790 100644 --- a/arch/blackfin/kernel/vmlinux.lds.S +++ b/arch/blackfin/kernel/vmlinux.lds.S @@ -31,6 +31,7 @@ #include <asm-generic/vmlinux.lds.h> #include <asm/mem_map.h> +#include <asm/page.h> OUTPUT_FORMAT("elf32-bfin") ENTRY(__start) @@ -63,8 +64,8 @@ SECTIONS .data : { + . = ALIGN(PAGE_SIZE); __sdata = .; - . = ALIGN(0x2000); *(.data.init_task) DATA_DATA CONSTRUCTORS @@ -72,14 +73,14 @@ SECTIONS . = ALIGN(32); *(.data.cacheline_aligned) - . = ALIGN(0x2000); + . = ALIGN(PAGE_SIZE); __edata = .; } + . = ALIGN(PAGE_SIZE); ___init_begin = .; .init : { - . = ALIGN(4096); __sinittext = .; *(.init.text) __einittext = .; @@ -152,9 +153,10 @@ SECTIONS __ebss_b_l1 = .; } - ___init_end = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1); + . = LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1); + ___init_end = ALIGN(PAGE_SIZE); - .bss LOADADDR(.data_b_l1) + SIZEOF(.data_b_l1) : + .bss ___init_end : { . = ALIGN(4); ___bss_start = .; diff --git a/arch/blackfin/lib/strcmp.c b/arch/blackfin/lib/strcmp.c index 2ad47c4254ba..4eeefd86907f 100644 --- a/arch/blackfin/lib/strcmp.c +++ b/arch/blackfin/lib/strcmp.c @@ -6,6 +6,5 @@ int strcmp(const char *dest, const char *src) { - return __inline_strcmp(dest, src); + return __inline_strcmp(dest, src); } - diff --git a/arch/blackfin/lib/strcpy.c b/arch/blackfin/lib/strcpy.c index 4dc835a8a19b..534589db7256 100644 --- a/arch/blackfin/lib/strcpy.c +++ b/arch/blackfin/lib/strcpy.c @@ -6,6 +6,5 @@ char *strcpy(char *dest, const char *src) { - return __inline_strcpy(dest, src); + return __inline_strcpy(dest, src); } - diff --git a/arch/blackfin/lib/strncmp.c b/arch/blackfin/lib/strncmp.c index 947bcfe3f3bb..d791f120bff7 100644 --- a/arch/blackfin/lib/strncmp.c +++ b/arch/blackfin/lib/strncmp.c @@ -6,6 +6,5 @@ int strncmp(const char *cs, const char *ct, size_t count) { - return __inline_strncmp(cs, ct, count); + return __inline_strncmp(cs, ct, count); } - diff --git a/arch/blackfin/lib/strncpy.c b/arch/blackfin/lib/strncpy.c index 77a9b2e95097..1fecb5c71ffb 100644 --- a/arch/blackfin/lib/strncpy.c +++ b/arch/blackfin/lib/strncpy.c @@ -6,6 +6,5 @@ char *strncpy(char *dest, const char *src, size_t n) { - return __inline_strncpy(dest, src, n); + return __inline_strncpy(dest, src, n); } - diff --git a/arch/blackfin/mach-bf533/Makefile b/arch/blackfin/mach-bf533/Makefile index 76d2c2b8579a..8cce1736360d 100644 --- a/arch/blackfin/mach-bf533/Makefile +++ b/arch/blackfin/mach-bf533/Makefile @@ -4,6 +4,6 @@ extra-y := head.o -obj-y := ints-priority.o +obj-y := ints-priority.o dma.o -obj-$(CONFIG_CPU_FREQ_BF533) += cpu.o +obj-$(CONFIG_CPU_FREQ) += cpu.o diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c index edd31ce4f8d2..4545f363e641 100644 --- a/arch/blackfin/mach-bf533/boards/cm_bf533.c +++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c @@ -34,7 +34,7 @@ #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/usb_isp1362.h> -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> /* @@ -51,11 +51,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -98,7 +98,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .platform_data = &bfin_spi_flash_data, .controller_data = &spi_flash_chip_info, .mode = SPI_MODE_3, - },{ + }, { .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */ .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */ .bus_num = 1, /* Framework bus number */ @@ -145,7 +145,7 @@ static struct resource smc91x_resources[] = { .start = 0x20200300, .end = 0x20200300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF0, .end = IRQ_PF0, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -194,11 +194,11 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x20308000, .end = 0x20308000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20308004, .end = 0x20308004, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF4, .end = IRQ_PF4, .flags = IORESOURCE_IRQ, diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c index 0b522d95160d..0000b8f1239c 100644 --- a/arch/blackfin/mach-bf533/boards/ezkit.c +++ b/arch/blackfin/mach-bf533/boards/ezkit.c @@ -35,7 +35,7 @@ #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/usb_isp1362.h> -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> /* @@ -61,7 +61,7 @@ static struct resource smc91x_resources[] = { .start = 0x20310300, .end = 0x20310300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF9, .end = IRQ_PF9, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -85,11 +85,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, diff --git a/arch/blackfin/mach-bf533/boards/generic_board.c b/arch/blackfin/mach-bf533/boards/generic_board.c index c0f43ccfbfb5..9bc1f0d0ab50 100644 --- a/arch/blackfin/mach-bf533/boards/generic_board.c +++ b/arch/blackfin/mach-bf533/boards/generic_board.c @@ -30,7 +30,7 @@ #include <linux/device.h> #include <linux/platform_device.h> -#include <asm/irq.h> +#include <linux/irq.h> /* * Name the Board for the /proc/cpuinfo @@ -53,11 +53,11 @@ static struct resource smc91x_resources[] = { .start = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTB, .end = IRQ_PROG_INTB, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { /* * denotes the flag pin and is used directly if * CONFIG_IRQCHIP_DEMUX_GPIO is defined. diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c index 9a472fe15833..a9143c4cbdcd 100644 --- a/arch/blackfin/mach-bf533/boards/stamp.c +++ b/arch/blackfin/mach-bf533/boards/stamp.c @@ -37,7 +37,7 @@ #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) #include <linux/usb_isp1362.h> #endif -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> /* @@ -62,7 +62,7 @@ static struct resource smc91x_resources[] = { .start = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -83,7 +83,7 @@ static struct resource net2272_bfin_resources[] = { .start = 0x20300000, .end = 0x20300000 + 0x100, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF10, .end = IRQ_PF10, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -108,11 +108,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -229,19 +229,19 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { #if defined(CONFIG_PBX) { - .modalias = "fxs-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 3, - .controller_data= &spi_si3xxx_chip_info, + .modalias = "fxs-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 3, + .controller_data = &spi_si3xxx_chip_info, .mode = SPI_MODE_3, }, { - .modalias = "fxo-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 2, - .controller_data= &spi_si3xxx_chip_info, + .modalias = "fxo-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .controller_data = &spi_si3xxx_chip_info, .mode = SPI_MODE_3, }, #endif diff --git a/arch/blackfin/mach-bf533/cpu.c b/arch/blackfin/mach-bf533/cpu.c index 99547c4c290e..6fd9cfd0a31b 100644 --- a/arch/blackfin/mach-bf533/cpu.c +++ b/arch/blackfin/mach-bf533/cpu.c @@ -79,8 +79,7 @@ static int bf533_target(struct cpufreq_policy *policy, int i; struct cpufreq_freqs freqs; - if (cpufreq_frequency_table_target - (policy, bf533_freq_table, target_freq, relation, &index)) + if (cpufreq_frequency_table_target(policy, bf533_freq_table, target_freq, relation, &index)) return -EINVAL; cclk_mhz = bf533_freq_table[index].frequency; vco_mhz = bf533_freq_table[index].index; diff --git a/arch/blackfin/mach-bf533/dma.c b/arch/blackfin/mach-bf533/dma.c new file mode 100644 index 000000000000..6c909cf4f7bf --- /dev/null +++ b/arch/blackfin/mach-bf533/dma.c @@ -0,0 +1,95 @@ +/* + * File: arch/blackfin/mach-bf533/dma.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <asm/blackfin.h> +#include <asm/dma.h> + +struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_NEXT_DESC_PTR, + (struct dma_register *) DMA3_NEXT_DESC_PTR, + (struct dma_register *) DMA4_NEXT_DESC_PTR, + (struct dma_register *) DMA5_NEXT_DESC_PTR, + (struct dma_register *) DMA6_NEXT_DESC_PTR, + (struct dma_register *) DMA7_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, +}; + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI: + ret_irq = IRQ_PPI; + break; + + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + break; + + case CH_SPI: + ret_irq = IRQ_SPI; + break; + + case CH_UART_RX: + ret_irq = IRQ_UART_RX; + break; + + case CH_UART_TX: + ret_irq = IRQ_UART_TX; + break; + + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MEM_DMA0; + break; + + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MEM_DMA1; + break; + } + return ret_irq; +} diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S index 7e2aa8d0f44f..7dd0e9c3a936 100644 --- a/arch/blackfin/mach-bf533/head.S +++ b/arch/blackfin/mach-bf533/head.S @@ -30,6 +30,7 @@ #include <linux/linkage.h> #include <linux/init.h> #include <asm/blackfin.h> +#include <asm/trace.h> #if CONFIG_BFIN_KERNEL_CLOCK #include <asm/mach/mem_init.h> #endif @@ -96,6 +97,10 @@ ENTRY(__start) M2 = r0; M3 = r0; + trace_buffer_start(p0,r0); + P0 = R1; + R0 = R1; + #if CONFIG_DEBUG_KERNEL_START /* diff --git a/arch/blackfin/mach-bf533/ints-priority.c b/arch/blackfin/mach-bf533/ints-priority.c index a3e1789167be..7d79e0f9503d 100644 --- a/arch/blackfin/mach-bf533/ints-priority.c +++ b/arch/blackfin/mach-bf533/ints-priority.c @@ -28,8 +28,8 @@ */ #include <linux/module.h> +#include <linux/irq.h> #include <asm/blackfin.h> -#include <asm/irq.h> void program_IAR(void) { diff --git a/arch/blackfin/mach-bf537/Makefile b/arch/blackfin/mach-bf537/Makefile index f32d44215bb7..7e7c9c8ac5b2 100644 --- a/arch/blackfin/mach-bf537/Makefile +++ b/arch/blackfin/mach-bf537/Makefile @@ -4,6 +4,6 @@ extra-y := head.o -obj-y := ints-priority.o +obj-y := ints-priority.o dma.o obj-$(CONFIG_CPU_FREQ) += cpu.o diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537.c b/arch/blackfin/mach-bf537/boards/cm_bf537.c index 6a60618a78ec..a8f947b72754 100644 --- a/arch/blackfin/mach-bf537/boards/cm_bf537.c +++ b/arch/blackfin/mach-bf537/boards/cm_bf537.c @@ -35,7 +35,7 @@ #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/usb_isp1362.h> -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> /* @@ -53,11 +53,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -202,7 +202,7 @@ static struct resource smc91x_resources[] = { .start = 0x20200300, .end = 0x20200300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF14, .end = IRQ_PF14, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -223,11 +223,11 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x20308000, .end = 0x20308000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20308004, .end = 0x20308004, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PG15, .end = IRQ_PG15, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -262,7 +262,7 @@ static struct resource net2272_bfin_resources[] = { .start = 0x20200000, .end = 0x20200000 + 0x100, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -283,7 +283,7 @@ static struct resource bfin_uart_resources[] = { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0xFFC02000, .end = 0xFFC020FF, .flags = IORESOURCE_MEM, diff --git a/arch/blackfin/mach-bf537/boards/eth_mac.c b/arch/blackfin/mach-bf537/boards/eth_mac.c index e129a08d63de..a725cc8a9290 100644 --- a/arch/blackfin/mach-bf537/boards/eth_mac.c +++ b/arch/blackfin/mach-bf537/boards/eth_mac.c @@ -20,8 +20,7 @@ #include <linux/module.h> #include <asm/blackfin.h> -#if defined(CONFIG_GENERIC_BOARD) \ - || defined(CONFIG_BFIN537_STAMP) +#if defined(CONFIG_GENERIC_BOARD) || defined(CONFIG_BFIN537_STAMP) /* * Currently the MAC address is saved in Flash by U-Boot @@ -43,7 +42,7 @@ void get_bf537_ether_addr(char *addr) */ void get_bf537_ether_addr(char *addr) { - printk(KERN_WARNING "%s: No valid Ethernet MAC address found\n",__FILE__); + printk(KERN_WARNING "%s: No valid Ethernet MAC address found\n", __FILE__); } #endif diff --git a/arch/blackfin/mach-bf537/boards/generic_board.c b/arch/blackfin/mach-bf537/boards/generic_board.c index fd57e7439e0f..648d984e98d6 100644 --- a/arch/blackfin/mach-bf537/boards/generic_board.c +++ b/arch/blackfin/mach-bf537/boards/generic_board.c @@ -35,9 +35,9 @@ #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/usb_isp1362.h> -#include <asm/irq.h> -#include <asm/bfin5xx_spi.h> +#include <linux/irq.h> #include <linux/usb_sl811.h> +#include <asm/bfin5xx_spi.h> /* * Name the Board for the /proc/cpuinfo @@ -54,19 +54,19 @@ static struct resource bfin_pcmcia_cf_resources[] = { .start = 0x20310000, /* IO PORT */ .end = 0x20312000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20311000, /* Attribute Memory */ .end = 0x20311FFF, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTA, .end = IRQ_PROG_INTA, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - },{ + }, { .start = IRQ_PF4, .end = IRQ_PF4, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - },{ + }, { .start = 6, /* Card Detect PF6 */ .end = 6, .flags = IORESOURCE_IRQ, @@ -95,11 +95,11 @@ static struct resource smc91x_resources[] = { .start = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTB, .end = IRQ_PROG_INTB, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { /* * denotes the flag pin and is used directly if * CONFIG_IRQCHIP_DEMUX_GPIO is defined. @@ -123,15 +123,15 @@ static struct resource sl811_hcd_resources[] = { .start = 0x20340000, .end = 0x20340000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20340004, .end = 0x20340004, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTA, .end = IRQ_PROG_INTA, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { .start = IRQ_PF0 + CONFIG_USB_SL811_BFIN_GPIO, .end = IRQ_PF0 + CONFIG_USB_SL811_BFIN_GPIO, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -179,15 +179,15 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x20360000, .end = 0x20360000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20360004, .end = 0x20360004, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTA, .end = IRQ_PROG_INTA, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { .start = IRQ_PF0 + CONFIG_USB_ISP1362_BFIN_GPIO, .end = IRQ_PF0 + CONFIG_USB_ISP1362_BFIN_GPIO, .flags = IORESOURCE_IRQ, @@ -228,7 +228,7 @@ static struct resource net2272_bfin_resources[] = { .start = 0x20300000, .end = 0x20300000 + 0x100, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -253,11 +253,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -375,7 +375,7 @@ static struct resource bfin_uart_resources[] = { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0xFFC02000, .end = 0xFFC020FF, .flags = IORESOURCE_MEM, diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c index 8aaf76dfce80..8806f1230f2d 100644 --- a/arch/blackfin/mach-bf537/boards/pnav10.c +++ b/arch/blackfin/mach-bf537/boards/pnav10.c @@ -37,7 +37,7 @@ #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) #include <linux/usb_isp1362.h> #endif -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> #include <linux/usb_sl811.h> @@ -58,15 +58,15 @@ static struct resource bfin_pcmcia_cf_resources[] = { .start = 0x20310000, /* IO PORT */ .end = 0x20312000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20311000, /* Attribute Memory */ .end = 0x20311FFF, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF4, .end = IRQ_PF4, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - },{ + }, { .start = 6, /* Card Detect PF6 */ .end = 6, .flags = IORESOURCE_IRQ, @@ -95,7 +95,7 @@ static struct resource smc91x_resources[] = { .start = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, @@ -116,11 +116,11 @@ static struct resource sl811_hcd_resources[] = { .start = 0x20340000, .end = 0x20340000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20340004, .end = 0x20340004, .flags = IORESOURCE_MEM, - },{ + }, { .start = CONFIG_USB_SL811_BFIN_IRQ, .end = CONFIG_USB_SL811_BFIN_IRQ, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -167,11 +167,11 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x20360000, .end = 0x20360000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20360004, .end = 0x20360004, .flags = IORESOURCE_MEM, - },{ + }, { .start = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, .end = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -212,7 +212,7 @@ static struct resource net2272_bfin_resources[] = { .start = 0x20300000, .end = 0x20300000 + 0x100, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -238,11 +238,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -294,16 +294,6 @@ static struct bfin5xx_spi_chip spi_mmc_chip_info = { }; #endif -#if defined(CONFIG_PBX) -static struct bfin5xx_spi_chip spi_si3xxx_chip_info = { - .ctl_reg = 0x4, /* send zero */ - .enable_dma = 0, - .bits_per_word = 8, - .cs_change_per_word = 1, -}; -#endif - - #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) static struct bfin5xx_spi_chip spi_ad7877_chip_info = { .cs_change_per_word = 1, @@ -392,24 +382,6 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { .mode = SPI_MODE_3, }, #endif -#if defined(CONFIG_PBX) - { - .modalias = "fxs-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 3, - .controller_data= &spi_si3xxx_chip_info, - .mode = SPI_MODE_3, - }, - { - .modalias = "fxo-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 2, - .controller_data= &spi_si3xxx_chip_info, - .mode = SPI_MODE_3, - }, -#endif #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) { .modalias = "ad7877", @@ -451,7 +423,7 @@ static struct resource bfin_uart_resources[] = { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0xFFC02000, .end = 0xFFC020FF, .flags = IORESOURCE_MEM, diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c index 3a29b4d15f25..9c43d7756510 100644 --- a/arch/blackfin/mach-bf537/boards/stamp.c +++ b/arch/blackfin/mach-bf537/boards/stamp.c @@ -37,12 +37,10 @@ #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) #include <linux/usb_isp1362.h> #endif -#include <asm/irq.h> #include <linux/irq.h> #include <linux/interrupt.h> -#include <asm/bfin5xx_spi.h> #include <linux/usb_sl811.h> - +#include <asm/bfin5xx_spi.h> #include <linux/spi/ad7877.h> /* @@ -85,7 +83,7 @@ static struct platform_device *bfin_isp1761_devices[] = { int __init bfin_isp1761_init(void) { - unsigned int num_devices=ARRAY_SIZE(bfin_isp1761_devices); + unsigned int num_devices = ARRAY_SIZE(bfin_isp1761_devices); printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); set_irq_type(ISP1761_IRQ, IRQF_TRIGGER_FALLING); @@ -107,15 +105,15 @@ static struct resource bfin_pcmcia_cf_resources[] = { .start = 0x20310000, /* IO PORT */ .end = 0x20312000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20311000, /* Attribute Memory */ .end = 0x20311FFF, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF4, .end = IRQ_PF4, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL, - },{ + }, { .start = 6, /* Card Detect PF6 */ .end = 6, .flags = IORESOURCE_IRQ, @@ -144,7 +142,7 @@ static struct resource smc91x_resources[] = { .start = 0x20300300, .end = 0x20300300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, @@ -159,17 +157,39 @@ static struct platform_device smc91x_device = { }; #endif +#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE) +static struct resource dm9000_resources[] = { + [0] = { + .start = 0x203FB800, + .end = 0x203FB800 + 8, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_PF9, + .end = IRQ_PF9, + .flags = (IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE), + }, +}; + +static struct platform_device dm9000_device = { + .name = "dm9000", + .id = -1, + .num_resources = ARRAY_SIZE(dm9000_resources), + .resource = dm9000_resources, +}; +#endif + #if defined(CONFIG_USB_SL811_HCD) || defined(CONFIG_USB_SL811_HCD_MODULE) static struct resource sl811_hcd_resources[] = { { .start = 0x20340000, .end = 0x20340000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20340004, .end = 0x20340004, .flags = IORESOURCE_MEM, - },{ + }, { .start = CONFIG_USB_SL811_BFIN_IRQ, .end = CONFIG_USB_SL811_BFIN_IRQ, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -216,11 +236,11 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x20360000, .end = 0x20360000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x20360004, .end = 0x20360004, .flags = IORESOURCE_MEM, - },{ + }, { .start = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, .end = CONFIG_USB_ISP1362_BFIN_GPIO_IRQ, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -261,7 +281,7 @@ static struct resource net2272_bfin_resources[] = { .start = 0x20300000, .end = 0x20300000 + 0x100, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF7, .end = IRQ_PF7, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -287,11 +307,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -361,7 +381,6 @@ static struct bfin5xx_spi_chip ad5304_chip_info = { #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE) static struct bfin5xx_spi_chip spi_ad7877_chip_info = { -// .cs_change_per_word = 1, .enable_dma = 0, .bits_per_word = 16, }; @@ -449,19 +468,19 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = { #endif #if defined(CONFIG_PBX) { - .modalias = "fxs-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 3, - .controller_data= &spi_si3xxx_chip_info, + .modalias = "fxs-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 3, + .controller_data = &spi_si3xxx_chip_info, .mode = SPI_MODE_3, }, { - .modalias = "fxo-spi", - .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ - .bus_num = 1, - .chip_select = 2, - .controller_data= &spi_si3xxx_chip_info, + .modalias = "fxo-spi", + .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */ + .bus_num = 1, + .chip_select = 2, + .controller_data = &spi_si3xxx_chip_info, .mode = SPI_MODE_3, }, #endif @@ -516,7 +535,7 @@ static struct resource bfin_uart_resources[] = { .start = 0xFFC00400, .end = 0xFFC004FF, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0xFFC02000, .end = 0xFFC020FF, .flags = IORESOURCE_MEM, @@ -571,6 +590,10 @@ static struct platform_device *stamp_devices[] __initdata = { &smc91x_device, #endif +#if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE) + &dm9000_device, +#endif + #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE) &bfin_mac_device, #endif diff --git a/arch/blackfin/mach-bf537/dma.c b/arch/blackfin/mach-bf537/dma.c new file mode 100644 index 000000000000..706cb97b0265 --- /dev/null +++ b/arch/blackfin/mach-bf537/dma.c @@ -0,0 +1,115 @@ +/* + * File: arch/blackfin/mach-bf537/dma.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <asm/blackfin.h> +#include <asm/dma.h> + +struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_NEXT_DESC_PTR, + (struct dma_register *) DMA3_NEXT_DESC_PTR, + (struct dma_register *) DMA4_NEXT_DESC_PTR, + (struct dma_register *) DMA5_NEXT_DESC_PTR, + (struct dma_register *) DMA6_NEXT_DESC_PTR, + (struct dma_register *) DMA7_NEXT_DESC_PTR, + (struct dma_register *) DMA8_NEXT_DESC_PTR, + (struct dma_register *) DMA9_NEXT_DESC_PTR, + (struct dma_register *) DMA10_NEXT_DESC_PTR, + (struct dma_register *) DMA11_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, +}; + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI: + ret_irq = IRQ_PPI; + break; + + case CH_EMAC_RX: + ret_irq = IRQ_MAC_RX; + break; + + case CH_EMAC_TX: + ret_irq = IRQ_MAC_TX; + break; + + case CH_UART1_RX: + ret_irq = IRQ_UART1_RX; + break; + + case CH_UART1_TX: + ret_irq = IRQ_UART1_TX; + break; + + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + break; + + case CH_SPI: + ret_irq = IRQ_SPI; + break; + + case CH_UART_RX: + ret_irq = IRQ_UART_RX; + break; + + case CH_UART_TX: + ret_irq = IRQ_UART_TX; + break; + + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MEM_DMA0; + break; + + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MEM_DMA1; + break; + } + return ret_irq; +} diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S index 7d902bbd860f..429c8a1019da 100644 --- a/arch/blackfin/mach-bf537/head.S +++ b/arch/blackfin/mach-bf537/head.S @@ -30,6 +30,8 @@ #include <linux/linkage.h> #include <linux/init.h> #include <asm/blackfin.h> +#include <asm/trace.h> + #if CONFIG_BFIN_KERNEL_CLOCK #include <asm/mach/mem_init.h> #endif @@ -93,6 +95,10 @@ ENTRY(__start) M2 = r0; M3 = r0; + trace_buffer_start(p0,r0); + P0 = R1; + R0 = R1; + /* Turn off the icache */ p0.l = (IMEM_CONTROL & 0xFFFF); p0.h = (IMEM_CONTROL >> 16); diff --git a/arch/blackfin/mach-bf537/ints-priority.c b/arch/blackfin/mach-bf537/ints-priority.c index 2dbf3df465d1..a8b915f202ec 100644 --- a/arch/blackfin/mach-bf537/ints-priority.c +++ b/arch/blackfin/mach-bf537/ints-priority.c @@ -28,8 +28,8 @@ */ #include <linux/module.h> +#include <linux/irq.h> #include <asm/blackfin.h> -#include <asm/irq.h> void program_IAR(void) { diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig new file mode 100644 index 000000000000..e78b03d56c7c --- /dev/null +++ b/arch/blackfin/mach-bf548/Kconfig @@ -0,0 +1,316 @@ +if (BF54x) + +menu "BF548 Specific Configuration" + +comment "Interrupt Priority Assignment" +menu "Priority" + +config IRQ_PLL_WAKEUP + int "IRQ_PLL_WAKEUP" + default 7 +config IRQ_DMAC0_ERR + int "IRQ_DMAC0_ERR" + default 7 +config IRQ_EPPI0_ERR + int "IRQ_EPPI0_ERR" + default 7 +config IRQ_SPORT0_ERR + int "IRQ_SPORT0_ERR" + default 7 +config IRQ_SPORT1_ERR + int "IRQ_SPORT1_ERR" + default 7 +config IRQ_SPI0_ERR + int "IRQ_SPI0_ERR" + default 7 +config IRQ_UART0_ERR + int "IRQ_UART0_ERR" + default 7 +config IRQ_RTC + int "IRQ_RTC" + default 8 +config IRQ_EPPI0 + int "IRQ_EPPI0" + default 8 +config IRQ_SPORT0_RX + int "IRQ_SPORT0_RX" + default 9 +config IRQ_SPORT0_TX + int "IRQ_SPORT0_TX" + default 9 +config IRQ_SPORT1_RX + int "IRQ_SPORT1_RX" + default 9 +config IRQ_SPORT1_TX + int "IRQ_SPORT1_TX" + default 9 +config IRQ_SPI0 + int "IRQ_SPI0" + default 10 +config IRQ_UART0_RX + int "IRQ_UART0_RX" + default 10 +config IRQ_UART0_TX + int "IRQ_UART0_TX" + default 10 +config IRQ_TIMER8 + int "IRQ_TIMER8" + default 11 +config IRQ_TIMER9 + int "IRQ_TIMER9" + default 11 +config IRQ_TIMER10 + int "IRQ_TIMER10" + default 11 +config IRQ_PINT0 + int "IRQ_PINT0" + default 12 +config IRQ_PINT1 + int "IRQ_PINT0" + default 12 +config IRQ_MDMAS0 + int "IRQ_MDMAS0" + default 13 +config IRQ_MDMAS1 + int "IRQ_DMDMAS1" + default 13 +config IRQ_WATCHDOG + int "IRQ_WATCHDOG" + default 13 +config IRQ_DMAC1_ERR + int "IRQ_DMAC1_ERR" + default 7 +config IRQ_SPORT2_ERR + int "IRQ_SPORT2_ERR" + default 7 +config IRQ_SPORT3_ERR + int "IRQ_SPORT3_ERR" + default 7 +config IRQ_MXVR_DATA + int "IRQ MXVR Data" + default 7 +config IRQ_SPI1_ERR + int "IRQ_SPI1_ERR" + default 7 +config IRQ_SPI2_ERR + int "IRQ_SPI2_ERR" + default 7 +config IRQ_UART1_ERR + int "IRQ_UART1_ERR" + default 7 +config IRQ_UART2_ERR + int "IRQ_UART2_ERR" + default 7 +config IRQ_CAN0_ERR + int "IRQ_CAN0_ERR" + default 7 +config IRQ_SPORT2_RX + int "IRQ_SPORT2_RX" + default 9 +config IRQ_SPORT2_TX + int "IRQ_SPORT2_TX" + default 9 +config IRQ_SPORT3_RX + int "IRQ_SPORT3_RX" + default 9 +config IRQ_SPORT3_TX + int "IRQ_SPORT3_TX" + default 9 +config IRQ_EPPI1 + int "IRQ_EPPI1" + default 9 +config IRQ_EPPI2 + int "IRQ_EPPI2" + default 9 +config IRQ_SPI1 + int "IRQ_SPI1" + default 10 +config IRQ_SPI2 + int "IRQ_SPI2" + default 10 +config IRQ_UART1_RX + int "IRQ_UART1_RX" + default 10 +config IRQ_UART1_TX + int "IRQ_UART1_TX" + default 10 +config IRQ_ATAPI_RX + int "IRQ_ATAPI_RX" + default 10 +config IRQ_ATAPI_TX + int "IRQ_ATAPI_TX" + default 10 +config IRQ_TWI0 + int "IRQ_TWI0" + default 11 +config IRQ_TWI1 + int "IRQ_TWI1" + default 11 +config IRQ_CAN0_RX + int "IRQ_CAN_RX" + default 11 +config IRQ_CAN0_TX + int "IRQ_CAN_TX" + default 11 +config IRQ_MDMAS2 + int "IRQ_MDMAS2" + default 13 +config IRQ_MDMAS3 + int "IRQ_DMMAS3" + default 13 +config IRQ_MXVR_ERR + int "IRQ_MXVR_ERR" + default 11 +config IRQ_MXVR_MSG + int "IRQ_MXVR_MSG" + default 11 +config IRQ_MXVR_PKT + int "IRQ_MXVR_PKT" + default 11 +config IRQ_EPPI1_ERR + int "IRQ_EPPI1_ERR" + default 7 +config IRQ_EPPI2_ERR + int "IRQ_EPPI2_ERR" + default 7 +config IRQ_UART3_ERR + int "IRQ_UART3_ERR" + default 7 +config IRQ_HOST_ERR + int "IRQ_HOST_ERR" + default 7 +config IRQ_PIXC_ERR + int "IRQ_PIXC_ERR" + default 7 +config IRQ_NFC_ERR + int "IRQ_NFC_ERR" + default 7 +config IRQ_ATAPI_ERR + int "IRQ_ATAPI_ERR" + default 7 +config IRQ_CAN1_ERR + int "IRQ_CAN1_ERR" + default 7 +config IRQ_HS_DMA_ERR + int "IRQ Handshake DMA Status" + default 7 +config IRQ_PIXC_IN0 + int "IRQ PIXC IN0" + default 8 +config IRQ_PIXC_IN1 + int "IRQ PIXC IN1" + default 8 +config IRQ_PIXC_OUT + int "IRQ PIXC OUT" + default 8 +config IRQ_SDH + int "IRQ SDH" + default 8 +config IRQ_CNT + int "IRQ CNT" + default 8 +config IRQ_KEY + int "IRQ KEY" + default 8 +config IRQ_CAN1_RX + int "IRQ CAN1 RX" + default 11 +config IRQ_CAN1_TX + int "IRQ_CAN1_TX" + default 11 +config IRQ_SDH_MASK0 + int "IRQ_SDH_MASK0" + default 11 +config IRQ_SDH_MASK1 + int "IRQ_SDH_MASK1" + default 11 +config IRQ_USB_INT0 + int "IRQ USB INT0" + default 11 +config IRQ_USB_INT1 + int "IRQ USB INT1" + default 11 +config IRQ_USB_INT2 + int "IRQ USB INT2" + default 11 +config IRQ_USB_DMA + int "IRQ USB DMA" + default 11 +config IRQ_OTPSEC + int "IRQ OPTSEC" + default 11 +config IRQ_TIMER0 + int "IRQ_TIMER0" + default 11 +config IRQ_TIMER1 + int "IRQ_TIMER1" + default 11 +config IRQ_TIMER2 + int "IRQ_TIMER2" + default 11 +config IRQ_TIMER3 + int "IRQ_TIMER3" + default 11 +config IRQ_TIMER4 + int "IRQ_TIMER4" + default 11 +config IRQ_TIMER5 + int "IRQ_TIMER5" + default 11 +config IRQ_TIMER6 + int "IRQ_TIMER6" + default 11 +config IRQ_TIMER7 + int "IRQ_TIMER7" + default 11 +config IRQ_PINT2 + int "IRQ_PIN2" + default 11 +config IRQ_PINT3 + int "IRQ_PIN3" + default 11 + + help + Enter the priority numbers between 7-13 ONLY. Others are Reserved. + This applies to all the above. It is not recommended to assign the + highest priority number 7 to UART or any other device. + +endmenu + +comment "Pin Interrupt to Port Assignment" +menu "Assignment" + +config PINTx_REASSIGN + bool "Reprogram PINT Assignment" + default n + help + The interrupt assignment registers controls the pin-to-interrupt + assignment in a byte-wide manner. Each option allows you to select + a set of pins (High/Low Byte) of an specific Port being mapped + to one of the four PIN Interrupts IRQ_PINTx. + + You shouldn't change any of these unless you know exactly what you're doing. + Please consult the Blackfin BF54x Processor Hardware Reference Manual. + +config PINT0_ASSIGN + hex "PINT0_ASSIGN" + depends on PINTx_REASSIGN + default 0x00000101 +config PINT1_ASSIGN + hex "PINT1_ASSIGN" + depends on PINTx_REASSIGN + default 0x01010000 +config PINT2_ASSIGN + hex "PINT2_ASSIGN" + depends on PINTx_REASSIGN + default 0x00000101 +config PINT3_ASSIGN + hex "PINT3_ASSIGN" + depends on PINTx_REASSIGN + default 0x02020303 + +endmenu + +endmenu + +endif diff --git a/arch/blackfin/mach-bf548/Makefile b/arch/blackfin/mach-bf548/Makefile new file mode 100644 index 000000000000..060ad78ebf1d --- /dev/null +++ b/arch/blackfin/mach-bf548/Makefile @@ -0,0 +1,9 @@ +# +# arch/blackfin/mach-bf537/Makefile +# + +extra-y := head.o + +obj-y := ints-priority.o dma.o gpio.o + +obj-$(CONFIG_CPU_FREQ) += cpu.o diff --git a/arch/blackfin/mach-bf548/boards/Makefile b/arch/blackfin/mach-bf548/boards/Makefile new file mode 100644 index 000000000000..486e07c99a51 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/Makefile @@ -0,0 +1,5 @@ +# +# arch/blackfin/mach-bf548/boards/Makefile +# + +obj-$(CONFIG_BFIN548_EZKIT) += ezkit.o led.o diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c new file mode 100644 index 000000000000..96ad95fab1a8 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/ezkit.c @@ -0,0 +1,114 @@ +/* + * File: arch/blackfin/mach-bf548/boards/ezkit.c + * Based on: arch/blackfin/mach-bf537/boards/ezkit.c + * Author: Aidan Williams <aidan@nicta.com.au> + * + * Created: + * Description: + * + * Modified: + * Copyright 2005 National ICT Australia (NICTA) + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/partitions.h> +#include <linux/spi/spi.h> +#include <linux/spi/flash.h> +#include <linux/irq.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/bfin5xx_spi.h> + +/* + * Name the Board for the /proc/cpuinfo + */ +char *bfin_board_name = "ADSP-BF548-EZKIT"; + +/* + * Driver needs to know address, irq and flag pin. + */ + +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) +static struct platform_device rtc_device = { + .name = "rtc-bfin", + .id = -1, +}; +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) +static struct resource bfin_uart_resources[] = { +#ifdef CONFIG_SERIAL_BFIN_UART0 + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART1 + { + .start = 0xFFC02000, + .end = 0xFFC020FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART2 + { + .start = 0xFFC02100, + .end = 0xFFC021FF, + .flags = IORESOURCE_MEM, + }, +#endif +#ifdef CONFIG_SERIAL_BFIN_UART3 + { + .start = 0xFFC03100, + .end = 0xFFC031FF, + }, +#endif +}; + +static struct platform_device bfin_uart_device = { + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, +}; +#endif + +static struct platform_device *ezkit_devices[] __initdata = { +#if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE) + &rtc_device, +#endif + +#if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) + &bfin_uart_device, +#endif +}; + +static int __init stamp_init(void) +{ + printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); + platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices)); + return 0; +} + +arch_initcall(stamp_init); diff --git a/arch/blackfin/mach-bf548/boards/led.S b/arch/blackfin/mach-bf548/boards/led.S new file mode 100644 index 000000000000..f47daf3770d0 --- /dev/null +++ b/arch/blackfin/mach-bf548/boards/led.S @@ -0,0 +1,172 @@ +/**************************************************** + * LED1 ---- PG6 LED2 ---- PG7 * + * LED3 ---- PG8 LED4 ---- PG9 * + * LED5 ---- PG10 LED6 ---- PG11 * + ****************************************************/ + +#include <linux/linkage.h> +#include <asm/blackfin.h> + +/* All functions in this file save the registers they uses. + So there is no need to save any registers before calling them. */ + + .text; + +/* Initialize LEDs. */ + +ENTRY(_led_init) + LINK 0; + [--SP] = P0; + [--SP] = R0; + [--SP] = R1; + [--SP] = R2; + R1 = (PG6|PG7|PG8|PG9|PG10|PG11)(Z); + R2 = ~R1; + + P0.H = hi(PORTG_FER); + P0.L = lo(PORTG_FER); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + P0.H = hi(PORTG_DIR_SET); + P0.L = lo(PORTG_DIR_SET); + W[P0] = R1.L; + SSYNC; + + P0.H = hi(PORTG_INEN); + P0.L = lo(PORTG_INEN); + R0 = W[P0](Z); + SSYNC; + R0 = R0 & R2; + W[P0] = R0.L; + SSYNC; + + R2 = [SP++]; + R1 = [SP++]; + R0 = [SP++]; + P0 = [SP++]; + RTS; + .size _led_init, .-_led_init + +/* Set one LED on. Leave other LEDs unchanged. + It expects the LED number passed through R0. */ + +ENTRY(_led_on) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG_SET); + P0.L = lo(PORTG_SET); + W[P0] = R1.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_on, .-_led_on + +/* Set one LED off. Leave other LEDs unchanged. */ + +ENTRY(_led_off) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG_CLEAR); + P0.L = lo(PORTG_CLEAR); + W[P0] = R1.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_off, .-_led_off + +/* Toggle one LED. Leave other LEDs unchanged. */ + +ENTRY(_led_toggle) + LINK 0; + [--SP] = P0; + [--SP] = R1; + CALL _led_init; + R1 = 1; + R0 += 5; + R1 <<= R0; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R0 = W[P0](Z); + SSYNC; + R0 = R0 ^ R1; + W[P0] = R0.L; + SSYNC; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle, .-_led_toggle + +/* Display the number using LEDs in binary format. */ + +ENTRY(_led_disp_num) + LINK 0; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R2 = 6(X); + R0 <<= R2; + R1 <<= R2; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R2 = W[P0](Z); + SSYNC; + R1 = ~R1; + R2 = R2 & R1; + R2 = R2 | R0; + W[P0] = R2.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_disp_num, .-_led_disp_num + +/* Toggle the number using LEDs in binary format. */ + +ENTRY(_led_toggle_num) + LINK 0; + [--SP] = P0; + [--SP] = R1; + [--SP] = R2; + CALL _led_init; + R1 = 0x3f(X); + R0 = R0 & R1; + R1 = 6(X); + R0 <<= R1; + P0.H = hi(PORTG); + P0.L = lo(PORTG); + R1 = W[P0](Z); + SSYNC; + R1 = R1 ^ R0; + W[P0] = R1.L; + SSYNC; + R2 = [SP++]; + R1 = [SP++]; + P0 = [SP++]; + UNLINK; + RTS; + .size _led_toggle_num, .-_led_toggle_num + diff --git a/arch/blackfin/mach-bf548/cpu.c b/arch/blackfin/mach-bf548/cpu.c new file mode 100644 index 000000000000..4298a3ccfbfc --- /dev/null +++ b/arch/blackfin/mach-bf548/cpu.c @@ -0,0 +1,159 @@ +/* + * File: arch/blackfin/mach-bf548/cpu.c + * Based on: + * Author: + * + * Created: + * Description: clock scaling for the bf54x + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/cpufreq.h> +#include <asm/dpmc.h> +#include <linux/fs.h> +#include <asm/bfin-global.h> + +/* CONFIG_CLKIN_HZ=25000000 */ +#define VCO5 (CONFIG_CLKIN_HZ*45) +#define VCO4 (CONFIG_CLKIN_HZ*36) +#define VCO3 (CONFIG_CLKIN_HZ*27) +#define VCO2 (CONFIG_CLKIN_HZ*18) +#define VCO1 (CONFIG_CLKIN_HZ*9) +#define VCO(x) VCO##x + +#define MFREQ(x) {VCO(x),VCO(x)/4},{VCO(x),VCO(x)/2},{VCO(x),VCO(x)} +/* frequency */ +static struct cpufreq_frequency_table bf548_freq_table[] = { + MFREQ(1), + MFREQ(3), + {VCO4, VCO4 / 2}, {VCO4, VCO4}, + MFREQ(5), + {0, CPUFREQ_TABLE_END}, +}; + +/* + * dpmc_fops->ioctl() + * static int dpmc_ioctl(struct inode *inode, struct file *file, unsigned int cmd, unsigned long arg) + */ +static int bf548_getfreq(unsigned int cpu) +{ + unsigned long cclk_mhz; + + /* The driver only support single cpu */ + if (cpu == 0) + dpmc_fops.ioctl(NULL, NULL, IOCTL_GET_CORECLOCK, &cclk_mhz); + else + cclk_mhz = -1; + + return cclk_mhz; +} + +static int bf548_target(struct cpufreq_policy *policy, + unsigned int target_freq, unsigned int relation) +{ + unsigned long cclk_mhz; + unsigned long vco_mhz; + unsigned long flags; + unsigned int index; + struct cpufreq_freqs freqs; + + if (cpufreq_frequency_table_target(policy, bf548_freq_table, target_freq, relation, &index)) + return -EINVAL; + + cclk_mhz = bf548_freq_table[index].frequency; + vco_mhz = bf548_freq_table[index].index; + + dpmc_fops.ioctl(NULL, NULL, IOCTL_CHANGE_FREQUENCY, &vco_mhz); + freqs.old = bf548_getfreq(0); + freqs.new = cclk_mhz; + freqs.cpu = 0; + + pr_debug("cclk begin change to cclk %d,vco=%d,index=%d,target=%d,oldfreq=%d\n", + cclk_mhz, vco_mhz, index, target_freq, freqs.old); + + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + local_irq_save(flags); + dpmc_fops.ioctl(NULL, NULL, IOCTL_SET_CCLK, &cclk_mhz); + local_irq_restore(flags); + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + + vco_mhz = get_vco(); + cclk_mhz = get_cclk(); + return 0; +} + +/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on + * this platform, anyway. + */ +static int bf548_verify_speed(struct cpufreq_policy *policy) +{ + return cpufreq_frequency_table_verify(policy, &bf548_freq_table); +} + +static int __init __bf548_cpu_init(struct cpufreq_policy *policy) +{ + if (policy->cpu != 0) + return -EINVAL; + + policy->governor = CPUFREQ_DEFAULT_GOVERNOR; + + policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL; + /*Now ,only support one cpu */ + policy->cur = bf548_getfreq(0); + cpufreq_frequency_table_get_attr(bf548_freq_table, policy->cpu); + return cpufreq_frequency_table_cpuinfo(policy, bf548_freq_table); +} + +static struct freq_attr *bf548_freq_attr[] = { + &cpufreq_freq_attr_scaling_available_freqs, + NULL, +}; + +static struct cpufreq_driver bf548_driver = { + .verify = bf548_verify_speed, + .target = bf548_target, + .get = bf548_getfreq, + .init = __bf548_cpu_init, + .name = "bf548", + .owner = THIS_MODULE, + .attr = bf548_freq_attr, +}; + +static int __init bf548_cpu_init(void) +{ + return cpufreq_register_driver(&bf548_driver); +} + +static void __exit bf548_cpu_exit(void) +{ + cpufreq_unregister_driver(&bf548_driver); +} + +MODULE_AUTHOR("Mickael Kang"); +MODULE_DESCRIPTION("cpufreq driver for BF548 CPU"); +MODULE_LICENSE("GPL"); + +module_init(bf548_cpu_init); +module_exit(bf548_cpu_exit); diff --git a/arch/blackfin/mach-bf548/dma.c b/arch/blackfin/mach-bf548/dma.c new file mode 100644 index 000000000000..a8184113be48 --- /dev/null +++ b/arch/blackfin/mach-bf548/dma.c @@ -0,0 +1,156 @@ +/* + * File: arch/blackfin/mach-bf561/dma.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <asm/blackfin.h> +#include <asm/dma.h> + + struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_NEXT_DESC_PTR, + (struct dma_register *) DMA3_NEXT_DESC_PTR, + (struct dma_register *) DMA4_NEXT_DESC_PTR, + (struct dma_register *) DMA5_NEXT_DESC_PTR, + (struct dma_register *) DMA6_NEXT_DESC_PTR, + (struct dma_register *) DMA7_NEXT_DESC_PTR, + (struct dma_register *) DMA8_NEXT_DESC_PTR, + (struct dma_register *) DMA9_NEXT_DESC_PTR, + (struct dma_register *) DMA10_NEXT_DESC_PTR, + (struct dma_register *) DMA11_NEXT_DESC_PTR, + (struct dma_register *) DMA12_NEXT_DESC_PTR, + (struct dma_register *) DMA13_NEXT_DESC_PTR, + (struct dma_register *) DMA14_NEXT_DESC_PTR, + (struct dma_register *) DMA15_NEXT_DESC_PTR, + (struct dma_register *) DMA16_NEXT_DESC_PTR, + (struct dma_register *) DMA17_NEXT_DESC_PTR, + (struct dma_register *) DMA18_NEXT_DESC_PTR, + (struct dma_register *) DMA19_NEXT_DESC_PTR, + (struct dma_register *) DMA20_NEXT_DESC_PTR, + (struct dma_register *) DMA21_NEXT_DESC_PTR, + (struct dma_register *) DMA22_NEXT_DESC_PTR, + (struct dma_register *) DMA23_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D2_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S2_NEXT_DESC_PTR, + (struct dma_register *) MDMA_D3_NEXT_DESC_PTR, + (struct dma_register *) MDMA_S3_NEXT_DESC_PTR, +}; + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + case CH_SPI0: + ret_irq = IRQ_SPI0; + break; + case CH_SPI1: + ret_irq = IRQ_SPI1; + break; + case CH_UART0_RX: + ret_irq = IRQ_UART_RX; + break; + case CH_UART0_TX: + ret_irq = IRQ_UART_TX; + break; + case CH_UART1_RX: + ret_irq = IRQ_UART_RX; + break; + case CH_UART1_TX: + ret_irq = IRQ_UART_TX; + break; + case CH_EPPI0: + ret_irq = IRQ_EPPI0; + break; + case CH_EPPI1: + ret_irq = IRQ_EPPI1; + break; + case CH_EPPI2: + ret_irq = IRQ_EPPI2; + break; + case CH_PIXC_IMAGE: + ret_irq = IRQ_PIXC_IN0; + break; + case CH_PIXC_OVERLAY: + ret_irq = IRQ_PIXC_IN1; + break; + case CH_PIXC_OUTPUT: + ret_irq = IRQ_PIXC_OUT; + break; + case CH_SPORT2_RX: + ret_irq = IRQ_SPORT2_RX; + break; + case CH_SPORT2_TX: + ret_irq = IRQ_SPORT2_TX; + break; + case CH_SPORT3_RX: + ret_irq = IRQ_SPORT3_RX; + break; + case CH_SPORT3_TX: + ret_irq = IRQ_SPORT3_TX; + break; + case CH_SDH: + ret_irq = IRQ_SDH; + break; + case CH_SPI2: + ret_irq = IRQ_SPI2; + break; + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MDMAS0; + break; + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MDMAS1; + break; + case CH_MEM_STREAM2_SRC: + case CH_MEM_STREAM2_DEST: + ret_irq = IRQ_MDMAS2; + break; + case CH_MEM_STREAM3_SRC: + case CH_MEM_STREAM3_DEST: + ret_irq = IRQ_MDMAS3; + break; + } + return ret_irq; +} diff --git a/arch/blackfin/mach-bf548/gpio.c b/arch/blackfin/mach-bf548/gpio.c new file mode 100644 index 000000000000..0da5f0003b8c --- /dev/null +++ b/arch/blackfin/mach-bf548/gpio.c @@ -0,0 +1,323 @@ +/* + * File: arch/blackfin/mach-bf548/gpio.c + * Based on: + * Author: Michael Hennerich (hennerich@blackfin.uclinux.org) + * + * Created: + * Description: GPIO Abstraction Layer + * + * Modified: + * Copyright 2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/err.h> +#include <asm/blackfin.h> +#include <asm/gpio.h> +#include <asm/portmux.h> +#include <linux/irq.h> + +static struct gpio_port_t *gpio_array[gpio_bank(MAX_BLACKFIN_GPIOS)] = { + (struct gpio_port_t *)PORTA_FER, + (struct gpio_port_t *)PORTB_FER, + (struct gpio_port_t *)PORTC_FER, + (struct gpio_port_t *)PORTD_FER, + (struct gpio_port_t *)PORTE_FER, + (struct gpio_port_t *)PORTF_FER, + (struct gpio_port_t *)PORTG_FER, + (struct gpio_port_t *)PORTH_FER, + (struct gpio_port_t *)PORTI_FER, + (struct gpio_port_t *)PORTJ_FER, +}; + +static unsigned short reserved_gpio_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; +static unsigned short reserved_peri_map[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +inline int check_gpio(unsigned short gpio) +{ + if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 + || gpio == GPIO_PH14 || gpio == GPIO_PH15 + || gpio == GPIO_PJ14 || gpio == GPIO_PJ15 + || gpio > MAX_BLACKFIN_GPIOS) + return -EINVAL; + return 0; +} + +inline void portmux_setup(unsigned short portno, unsigned short function) +{ + u32 pmux; + + pmux = gpio_array[gpio_bank(portno)]->port_mux; + + pmux &= ~(0x3 << (2 * gpio_sub_n(portno))); + pmux |= (function & 0x3) << (2 * gpio_sub_n(portno)); + + gpio_array[gpio_bank(portno)]->port_mux = pmux; + +} + +inline u16 get_portmux(unsigned short portno) +{ + u32 pmux; + + pmux = gpio_array[gpio_bank(portno)]->port_mux; + + return (pmux >> (2 * gpio_sub_n(portno)) & 0x3); + +} + +static void port_setup(unsigned short gpio, unsigned short usage) +{ + if (usage == GPIO_USAGE) { + if (gpio_array[gpio_bank(gpio)]->port_fer & gpio_bit(gpio)) + printk(KERN_WARNING + "bfin-gpio: Possible Conflict with Peripheral " + "usage and GPIO %d detected!\n", gpio); + gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio); + } else + gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio); + SSYNC(); +} + +static int __init bfin_gpio_init(void) +{ + printk(KERN_INFO "Blackfin GPIO Controller\n"); + + return 0; +} + +arch_initcall(bfin_gpio_init); + +int peripheral_request(unsigned short per, const char *label) +{ + unsigned long flags; + unsigned short ident = P_IDENT(per); + + if (!(per & P_DEFINED)) + return -ENODEV; + + if (check_gpio(ident) < 0) + return -EINVAL; + + local_irq_save(flags); + + if (unlikely(reserved_gpio_map[gpio_bank(ident)] & gpio_bit(ident))) { + printk(KERN_ERR + "%s: Peripheral %d is already reserved as GPIO!\n", + __FUNCTION__, per); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + + if (unlikely(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident))) { + + u16 funct = get_portmux(ident); + + if (!((per & P_MAYSHARE) && (funct == P_FUNCT2MUX(per)))) { + printk(KERN_ERR + "%s: Peripheral %d is already reserved!\n", + __FUNCTION__, per); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + } + + reserved_peri_map[gpio_bank(ident)] |= gpio_bit(ident); + + portmux_setup(ident, P_FUNCT2MUX(per)); + port_setup(ident, PERIPHERAL_USAGE); + + local_irq_restore(flags); + + return 0; +} +EXPORT_SYMBOL(peripheral_request); + +int peripheral_request_list(unsigned short per[], const char *label) +{ + + u16 cnt; + int ret; + + for (cnt = 0; per[cnt] != 0; cnt++) { + ret = peripheral_request(per[cnt], label); + if (ret < 0) + return ret; + } + + return 0; +} +EXPORT_SYMBOL(peripheral_request_list); + +void peripheral_free(unsigned short per) +{ + unsigned long flags; + unsigned short ident = P_IDENT(per); + + if (!(per & P_DEFINED)) + return; + + if (check_gpio(ident) < 0) + return; + + local_irq_save(flags); + + if (unlikely(!(reserved_peri_map[gpio_bank(ident)] & gpio_bit(ident)))) { + printk(KERN_ERR "bfin-gpio: Peripheral %d wasn't reserved!\n", per); + dump_stack(); + local_irq_restore(flags); + return; + } + + if (!(per & P_MAYSHARE)) { + port_setup(ident, GPIO_USAGE); + } + + reserved_peri_map[gpio_bank(ident)] &= ~gpio_bit(ident); + + local_irq_restore(flags); +} +EXPORT_SYMBOL(peripheral_free); + +void peripheral_free_list(unsigned short per[]) +{ + u16 cnt; + + for (cnt = 0; per[cnt] != 0; cnt++) { + peripheral_free(per[cnt]); + } + +} +EXPORT_SYMBOL(peripheral_free_list); + +/*********************************************************** +* +* FUNCTIONS: Blackfin GPIO Driver +* +* INPUTS/OUTPUTS: +* gpio - GPIO Number between 0 and MAX_BLACKFIN_GPIOS +* +* +* DESCRIPTION: Blackfin GPIO Driver API +* +* CAUTION: +************************************************************* +* MODIFICATION HISTORY : +**************************************************************/ + +int gpio_request(unsigned short gpio, const char *label) +{ + unsigned long flags; + + if (check_gpio(gpio) < 0) + return -EINVAL; + + local_irq_save(flags); + + if (unlikely(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + printk(KERN_ERR "bfin-gpio: GPIO %d is already reserved!\n", gpio); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + + if (unlikely(reserved_peri_map[gpio_bank(gpio)] & gpio_bit(gpio))) { + printk(KERN_ERR + "bfin-gpio: GPIO %d is already reserved as Peripheral!\n", gpio); + dump_stack(); + local_irq_restore(flags); + return -EBUSY; + } + + reserved_gpio_map[gpio_bank(gpio)] |= gpio_bit(gpio); + + local_irq_restore(flags); + + port_setup(gpio, GPIO_USAGE); + + return 0; +} +EXPORT_SYMBOL(gpio_request); + +void gpio_free(unsigned short gpio) +{ + unsigned long flags; + + if (check_gpio(gpio) < 0) + return; + + local_irq_save(flags); + + if (unlikely(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio)))) { + printk(KERN_ERR "bfin-gpio: GPIO %d wasn't reserved!\n", gpio); + dump_stack(); + local_irq_restore(flags); + return; + } + + reserved_gpio_map[gpio_bank(gpio)] &= ~gpio_bit(gpio); + + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_free); + +void gpio_direction_input(unsigned short gpio) +{ + unsigned long flags; + + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + + local_irq_save(flags); + gpio_array[gpio_bank(gpio)]->port_dir_clear = gpio_bit(gpio); + gpio_array[gpio_bank(gpio)]->port_inen |= gpio_bit(gpio); + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_direction_input); + +void gpio_direction_output(unsigned short gpio) +{ + unsigned long flags; + + BUG_ON(!(reserved_gpio_map[gpio_bank(gpio)] & gpio_bit(gpio))); + + local_irq_save(flags); + gpio_array[gpio_bank(gpio)]->port_inen &= ~gpio_bit(gpio); + gpio_array[gpio_bank(gpio)]->port_dir_set = gpio_bit(gpio); + local_irq_restore(flags); +} +EXPORT_SYMBOL(gpio_direction_output); + +void gpio_set_value(unsigned short gpio, unsigned short arg) +{ + if (arg) + gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio); + else + gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio); + +} +EXPORT_SYMBOL(gpio_set_value); + +unsigned short gpio_get_value(unsigned short gpio) +{ + return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> gpio_sub_n(gpio))); +} +EXPORT_SYMBOL(gpio_get_value); diff --git a/arch/blackfin/mach-bf548/head.S b/arch/blackfin/mach-bf548/head.S new file mode 100644 index 000000000000..06751ae8b857 --- /dev/null +++ b/arch/blackfin/mach-bf548/head.S @@ -0,0 +1,512 @@ +/* + * File: arch/blackfin/mach-bf548/head.S + * Based on: arch/blackfin/mach-bf537/head.S + * Author: Jeff Dionne <jeff@uclinux.org> COPYRIGHT 1998 D. Jeff Dionne + * + * Created: 1998 + * Description: Startup code for Blackfin BF548 + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/linkage.h> +#include <asm/blackfin.h> +#include <asm/trace.h> +#if CONFIG_BFIN_KERNEL_CLOCK +#include <asm/mach/mem_init.h> +#endif + +.global __rambase +.global __ramstart +.global __ramend +.extern ___bss_stop +.extern ___bss_start +.extern _bf53x_relocate_l1_mem + +#define INITIAL_STACK 0xFFB01000 + +.text + +ENTRY(__start) +ENTRY(__stext) + /* R0: argument of command line string, passed from uboot, save it */ + R7 = R0; + /* Set the SYSCFG register */ + R0 = 0x36; + SYSCFG = R0; /*Enable Cycle Counter and Nesting Of Interrupts(3rd Bit)*/ + R0 = 0; + + /* Clear Out All the data and pointer Registers*/ + R1 = R0; + R2 = R0; + R3 = R0; + R4 = R0; + R5 = R0; + R6 = R0; + + P0 = R0; + P1 = R0; + P2 = R0; + P3 = R0; + P4 = R0; + P5 = R0; + + LC0 = r0; + LC1 = r0; + L0 = r0; + L1 = r0; + L2 = r0; + L3 = r0; + + /* Clear Out All the DAG Registers*/ + B0 = r0; + B1 = r0; + B2 = r0; + B3 = r0; + + I0 = r0; + I1 = r0; + I2 = r0; + I3 = r0; + + M0 = r0; + M1 = r0; + M2 = r0; + M3 = r0; + + trace_buffer_start(p0,r0); + P0 = R1; + R0 = R1; + + /* Turn off the icache */ + p0.l = (IMEM_CONTROL & 0xFFFF); + p0.h = (IMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENICPLB; + R0 = R0 & R1; + [p0] = R0; + SSYNC; + + /* Turn off the dcache */ + p0.l = (DMEM_CONTROL & 0xFFFF); + p0.h = (DMEM_CONTROL >> 16); + R1 = [p0]; + R0 = ~ENDCPLB; + R0 = R0 & R1; + [p0] = R0; + SSYNC; + + /* Initialize stack pointer */ + SP.L = LO(INITIAL_STACK); + SP.H = HI(INITIAL_STACK); + FP = SP; + USP = SP; + + /* Put The Code for PLL Programming and SDRAM Programming in L1 ISRAM */ + call _bf53x_relocate_l1_mem; +#if CONFIG_BFIN_KERNEL_CLOCK + call _start_dma_code; +#endif + /* Code for initializing Async memory banks */ + + p2.h = hi(EBIU_AMBCTL1); + p2.l = lo(EBIU_AMBCTL1); + r0.h = hi(AMBCTL1VAL); + r0.l = lo(AMBCTL1VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMBCTL0); + p2.l = lo(EBIU_AMBCTL0); + r0.h = hi(AMBCTL0VAL); + r0.l = lo(AMBCTL0VAL); + [p2] = r0; + ssync; + + p2.h = hi(EBIU_AMGCTL); + p2.l = lo(EBIU_AMGCTL); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* This section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* EVT15 = _real_start */ + + p0.l = lo(EVT15); + p0.h = hi(EVT15); + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + csync; + + p0.l = lo(IMASK); + p0.h = hi(IMASK); + p1.l = IMASK_IVG15; + p1.h = 0x0; + [p0] = p1; + csync; + + raise 15; + p0.l = .LWAIT_HERE; + p0.h = .LWAIT_HERE; + reti = p0; +#if defined (ANOMALY_05000281) + nop; + nop; + nop; +#endif + rti; + +.LWAIT_HERE: + jump .LWAIT_HERE; + +ENTRY(_real_start) + [ -- sp ] = reti; + p0.l = lo(WDOG_CTL); + p0.h = hi(WDOG_CTL); + r0 = 0xAD6(z); + w[p0] = r0; /* watchdog off for now */ + ssync; + + /* Code update for BSS size == 0 + * Zero out the bss region. + */ + + p1.l = ___bss_start; + p1.h = ___bss_start; + p2.l = ___bss_stop; + p2.h = ___bss_stop; + r0 = 0; + p2 -= p1; + lsetup (.L_clear_bss, .L_clear_bss ) lc0 = p2; +.L_clear_bss: + B[p1++] = r0; + + /* In case there is a NULL pointer reference + * Zero out region before stext + */ + + p1.l = 0x0; + p1.h = 0x0; + r0.l = __stext; + r0.h = __stext; + r0 = r0 >> 1; + p2 = r0; + r0 = 0; + lsetup (.L_clear_zero, .L_clear_zero ) lc0 = p2; +.L_clear_zero: + W[p1++] = r0; + + /* pass the uboot arguments to the global value command line */ + R0 = R7; + call _cmdline_init; + + p1.l = __rambase; + p1.h = __rambase; + r0.l = __sdata; + r0.h = __sdata; + [p1] = r0; + + p1.l = __ramstart; + p1.h = __ramstart; + p3.l = ___bss_stop; + p3.h = ___bss_stop; + + r1 = p3; + [p1] = r1; + + + /* + * load the current thread pointer and stack + */ + r1.l = _init_thread_union; + r1.h = _init_thread_union; + + r2.l = 0x2000; + r2.h = 0x0000; + r1 = r1 + r2; + sp = r1; + usp = sp; + fp = sp; + call _start_kernel; +.L_exit: + jump.s .L_exit; + +.section .l1.text +#if CONFIG_BFIN_KERNEL_CLOCK +ENTRY(_start_dma_code) + + /* Enable PHY CLK buffer output */ + p0.h = hi(VR_CTL); + p0.l = lo(VR_CTL); + r0.l = w[p0]; + bitset(r0, 14); + w[p0] = r0.l; + ssync; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + r0.h = 0x0; + [p0] = r0; + SSYNC; + + /* + * Set PLL_CTL + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +.Lcheck_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump .Lcheck_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */ + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump .Lskip; + NOP; + BITSET (R0, 23); +.Lskip: + [P2] = R0; + SSYNC; + + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + R1 = [p2]; + R1 = R1 | R0; + [P2] = R1; + SSYNC; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = lo(IWR_ENABLE_ALL); + r0.h = hi(IWR_ENABLE_ALL); + [p0] = r0; + SSYNC; + + RTS; +#endif /* CONFIG_BFIN_KERNEL_CLOCK */ + +ENTRY(_bfin_reset) + /* No more interrupts to be handled*/ + CLI R6; + SSYNC; + +#if defined(CONFIG_MTD_M25P80) +/* + * The following code fix the SPI flash reboot issue, + * /CS signal of the chip which is using PF10 return to GPIO mode + */ + p0.h = hi(PORTF_FER); + p0.l = lo(PORTF_FER); + r0.l = 0x0000; + w[p0] = r0.l; + SSYNC; + +/* /CS return to high */ + p0.h = hi(PORTFIO); + p0.l = lo(PORTFIO); + r0.l = 0xFFFF; + w[p0] = r0.l; + SSYNC; + +/* Delay some time, This is necessary */ + r1.h = 0; + r1.l = 0x400; + p1 = r1; + lsetup (_delay_lab1,_delay_lab1_end ) lc1 = p1; +_delay_lab1: + r0.h = 0; + r0.l = 0x8000; + p0 = r0; + lsetup (_delay_lab0,_delay_lab0_end ) lc0 = p0; +_delay_lab0: + nop; +_delay_lab0_end: + nop; +_delay_lab1_end: + nop; +#endif + + /* Clear the bits 13-15 in SWRST if they werent cleared */ + p0.h = hi(SWRST); + p0.l = lo(SWRST); + csync; + r0.l = w[p0]; + + /* Clear the IMASK register */ + p0.h = hi(IMASK); + p0.l = lo(IMASK); + r0 = 0x0; + [p0] = r0; + + /* Clear the ILAT register */ + p0.h = hi(ILAT); + p0.l = lo(ILAT); + r0 = [p0]; + [p0] = r0; + SSYNC; + + /* Disable the WDOG TIMER */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0xAD6; + w[p0] = r0.l; + SSYNC; + + /* Clear the sticky bit incase it is already set */ + p0.h = hi(WDOG_CTL); + p0.l = lo(WDOG_CTL); + r0.l = 0x8AD6; + w[p0] = r0.l; + SSYNC; + + /* Program the count value */ + R0.l = 0x100; + R0.h = 0x0; + P0.h = hi(WDOG_CNT); + P0.l = lo(WDOG_CNT); + [P0] = R0; + SSYNC; + + /* Program WDOG_STAT if necessary */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + CC = BITTST(R0,1); + if !CC JUMP .LWRITESTAT; + CC = BITTST(R0,2); + if !CC JUMP .LWRITESTAT; + JUMP .LSKIP_WRITE; + +.LWRITESTAT: + /* When watch dog timer is enabled, + * a write to STAT will load the contents of CNT to STAT + */ + R0 = 0x0000(z); + P0.h = hi(WDOG_STAT); + P0.l = lo(WDOG_STAT) + [P0] = R0; + SSYNC; + +.LSKIP_WRITE: + /* Enable the reset event */ + P0.h = hi(WDOG_CTL); + P0.l = lo(WDOG_CTL); + R0 = W[P0](Z); + BITCLR(R0,1); + BITCLR(R0,2); + W[P0] = R0.L; + SSYNC; + NOP; + + /* Enable the wdog counter */ + R0 = W[P0](Z); + BITCLR(R0,4); + W[P0] = R0.L; + SSYNC; + + IDLE; + + RTS; + +.data + +/* + * Set up the usable of RAM stuff. Size of RAM is determined then + * an initial stack set up at the end. + */ + +.align 4 +__rambase: +.long 0 +__ramstart: +.long 0 +__ramend: +.long 0 diff --git a/arch/blackfin/mach-bf548/ints-priority.c b/arch/blackfin/mach-bf548/ints-priority.c new file mode 100644 index 000000000000..cb0ebac53c79 --- /dev/null +++ b/arch/blackfin/mach-bf548/ints-priority.c @@ -0,0 +1,137 @@ +/* + * File: arch/blackfin/mach-bf537/ints-priority.c + * Based on: arch/blackfin/mach-bf533/ints-priority.c + * Author: Michael Hennerich + * + * Created: + * Description: Set up the interupt priorities + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <linux/module.h> +#include <linux/irq.h> +#include <asm/blackfin.h> + +void program_IAR(void) +{ + /* Program the IAR0 Register with the configured priority */ + bfin_write_SIC_IAR0(((CONFIG_IRQ_PLL_WAKEUP - 7) << IRQ_PLL_WAKEUP_POS) | + ((CONFIG_IRQ_DMAC0_ERR - 7) << IRQ_DMAC0_ERR_POS) | + ((CONFIG_IRQ_EPPI0_ERR - 7) << IRQ_EPPI0_ERR_POS) | + ((CONFIG_IRQ_SPORT0_ERR - 7) << IRQ_SPORT0_ERR_POS) | + ((CONFIG_IRQ_SPORT1_ERR - 7) << IRQ_SPORT1_ERR_POS) | + ((CONFIG_IRQ_SPI0_ERR - 7) << IRQ_SPI0_ERR_POS) | + ((CONFIG_IRQ_UART0_ERR - 7) << IRQ_UART0_ERR_POS) | + ((CONFIG_IRQ_RTC - 7) << IRQ_RTC_POS)); + + bfin_write_SIC_IAR1(((CONFIG_IRQ_EPPI0 - 7) << IRQ_EPPI0_POS) | + ((CONFIG_IRQ_SPORT0_RX - 7) << IRQ_SPORT0_RX_POS) | + ((CONFIG_IRQ_SPORT0_TX - 7) << IRQ_SPORT0_TX_POS) | + ((CONFIG_IRQ_SPORT1_RX - 7) << IRQ_SPORT1_RX_POS) | + ((CONFIG_IRQ_SPORT1_TX - 7) << IRQ_SPORT1_TX_POS) | + ((CONFIG_IRQ_SPI0 - 7) << IRQ_SPI0_POS) | + ((CONFIG_IRQ_UART0_RX - 7) << IRQ_UART0_RX_POS) | + ((CONFIG_IRQ_UART0_TX - 7) << IRQ_UART0_TX_POS)); + + bfin_write_SIC_IAR2(((CONFIG_IRQ_TIMER8 - 7) << IRQ_TIMER8_POS) | + ((CONFIG_IRQ_TIMER9 - 7) << IRQ_TIMER9_POS) | + ((CONFIG_IRQ_PINT0 - 7) << IRQ_PINT0_POS) | + ((CONFIG_IRQ_PINT1 - 7) << IRQ_PINT1_POS) | + ((CONFIG_IRQ_MDMAS0 - 7) << IRQ_MDMAS0_POS) | + ((CONFIG_IRQ_MDMAS1 - 7) << IRQ_MDMAS1_POS) | + ((CONFIG_IRQ_WATCHDOG - 7) << IRQ_WATCHDOG_POS)); + + bfin_write_SIC_IAR3(((CONFIG_IRQ_DMAC1_ERR - 7) << IRQ_DMAC1_ERR_POS) | + ((CONFIG_IRQ_SPORT2_ERR - 7) << IRQ_SPORT2_ERR_POS) | + ((CONFIG_IRQ_SPORT3_ERR - 7) << IRQ_SPORT3_ERR_POS) | + ((CONFIG_IRQ_MXVR_DATA - 7) << IRQ_MXVR_DATA_POS) | + ((CONFIG_IRQ_SPI1_ERR - 7) << IRQ_SPI1_ERR_POS) | + ((CONFIG_IRQ_SPI2_ERR - 7) << IRQ_SPI2_ERR_POS) | + ((CONFIG_IRQ_UART1_ERR - 7) << IRQ_UART1_ERR_POS) | + ((CONFIG_IRQ_UART2_ERR - 7) << IRQ_UART2_ERR_POS)); + + bfin_write_SIC_IAR4(((CONFIG_IRQ_CAN0_ERR - 7) << IRQ_CAN0_ERR_POS) | + ((CONFIG_IRQ_SPORT2_RX - 7) << IRQ_SPORT2_RX_POS) | + ((CONFIG_IRQ_SPORT2_TX - 7) << IRQ_SPORT2_TX_POS) | + ((CONFIG_IRQ_SPORT3_RX - 7) << IRQ_SPORT3_RX_POS) | + ((CONFIG_IRQ_SPORT3_TX - 7) << IRQ_SPORT3_TX_POS) | + ((CONFIG_IRQ_EPPI1 - 7) << IRQ_EPPI1_POS) | + ((CONFIG_IRQ_EPPI2 - 7) << IRQ_EPPI2_POS) | + ((CONFIG_IRQ_SPI1 - 7) << IRQ_SPI1_POS)); + + bfin_write_SIC_IAR5(((CONFIG_IRQ_SPI2 - 7) << IRQ_SPI2_POS) | + ((CONFIG_IRQ_UART1_RX - 7) << IRQ_UART1_RX_POS) | + ((CONFIG_IRQ_UART1_TX - 7) << IRQ_UART1_TX_POS) | + ((CONFIG_IRQ_ATAPI_RX - 7) << IRQ_ATAPI_RX_POS) | + ((CONFIG_IRQ_ATAPI_TX - 7) << IRQ_ATAPI_TX_POS) | + ((CONFIG_IRQ_TWI0 - 7) << IRQ_TWI0_POS) | + ((CONFIG_IRQ_TWI1 - 7) << IRQ_TWI1_POS) | + ((CONFIG_IRQ_CAN0_RX - 7) << IRQ_CAN0_RX_POS)); + + bfin_write_SIC_IAR6(((CONFIG_IRQ_CAN0_TX - 7) << IRQ_CAN0_TX_POS) | + ((CONFIG_IRQ_MDMAS2 - 7) << IRQ_MDMAS2_POS) | + ((CONFIG_IRQ_MDMAS3 - 7) << IRQ_MDMAS3_POS) | + ((CONFIG_IRQ_MXVR_ERR - 7) << IRQ_MXVR_ERR_POS) | + ((CONFIG_IRQ_MXVR_MSG - 7) << IRQ_MXVR_MSG_POS) | + ((CONFIG_IRQ_MXVR_PKT - 7) << IRQ_MXVR_PKT_POS) | + ((CONFIG_IRQ_EPPI1_ERR - 7) << IRQ_EPPI1_ERR_POS) | + ((CONFIG_IRQ_EPPI2_ERR - 7) << IRQ_EPPI2_ERR_POS)); + + bfin_write_SIC_IAR7(((CONFIG_IRQ_UART3_ERR - 7) << IRQ_UART3_ERR_POS) | + ((CONFIG_IRQ_HOST_ERR - 7) << IRQ_HOST_ERR_POS) | + ((CONFIG_IRQ_PIXC_ERR - 7) << IRQ_PIXC_ERR_POS) | + ((CONFIG_IRQ_NFC_ERR - 7) << IRQ_NFC_ERR_POS) | + ((CONFIG_IRQ_ATAPI_ERR - 7) << IRQ_ATAPI_ERR_POS) | + ((CONFIG_IRQ_CAN1_ERR - 7) << IRQ_CAN1_ERR_POS) | + ((CONFIG_IRQ_HS_DMA_ERR - 7) << IRQ_HS_DMA_ERR_POS)); + + bfin_write_SIC_IAR8(((CONFIG_IRQ_PIXC_IN0 - 7) << IRQ_PIXC_IN1_POS) | + ((CONFIG_IRQ_PIXC_IN1 - 7) << IRQ_PIXC_IN1_POS) | + ((CONFIG_IRQ_PIXC_OUT - 7) << IRQ_PIXC_OUT_POS) | + ((CONFIG_IRQ_SDH - 7) << IRQ_SDH_POS) | + ((CONFIG_IRQ_CNT - 7) << IRQ_CNT_POS) | + ((CONFIG_IRQ_KEY - 7) << IRQ_KEY_POS) | + ((CONFIG_IRQ_CAN1_RX - 7) << IRQ_CAN1_RX_POS) | + ((CONFIG_IRQ_CAN1_TX - 7) << IRQ_CAN1_TX_POS)); + + bfin_write_SIC_IAR9(((CONFIG_IRQ_SDH_MASK0 - 7) << IRQ_SDH_MASK0_POS) | + ((CONFIG_IRQ_SDH_MASK1 - 7) << IRQ_SDH_MASK1_POS) | + ((CONFIG_IRQ_USB_INT0 - 7) << IRQ_USB_INT0_POS) | + ((CONFIG_IRQ_USB_INT1 - 7) << IRQ_USB_INT1_POS) | + ((CONFIG_IRQ_USB_INT2 - 7) << IRQ_USB_INT2_POS) | + ((CONFIG_IRQ_USB_DMA - 7) << IRQ_USB_DMA_POS) | + ((CONFIG_IRQ_OTPSEC - 7) << IRQ_OTPSEC_POS)); + + bfin_write_SIC_IAR10(((CONFIG_IRQ_TIMER0 - 7) << IRQ_TIMER0_POS) | + ((CONFIG_IRQ_TIMER1 - 7) << IRQ_TIMER1_POS)); + + bfin_write_SIC_IAR11(((CONFIG_IRQ_TIMER2 - 7) << IRQ_TIMER2_POS) | + ((CONFIG_IRQ_TIMER3 - 7) << IRQ_TIMER3_POS) | + ((CONFIG_IRQ_TIMER4 - 7) << IRQ_TIMER4_POS) | + ((CONFIG_IRQ_TIMER5 - 7) << IRQ_TIMER5_POS) | + ((CONFIG_IRQ_TIMER6 - 7) << IRQ_TIMER6_POS) | + ((CONFIG_IRQ_TIMER7 - 7) << IRQ_TIMER7_POS) | + ((CONFIG_IRQ_PINT2 - 7) << IRQ_PINT2_POS) | + ((CONFIG_IRQ_PINT3 - 7) << IRQ_PINT3_POS)); + + SSYNC(); +} diff --git a/arch/blackfin/mach-bf561/Makefile b/arch/blackfin/mach-bf561/Makefile index 57f475a55161..f39235a55783 100644 --- a/arch/blackfin/mach-bf561/Makefile +++ b/arch/blackfin/mach-bf561/Makefile @@ -4,6 +4,6 @@ extra-y := head.o -obj-y := ints-priority.o +obj-y := ints-priority.o dma.o obj-$(CONFIG_BF561_COREB) += coreb.o diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c index 3dc5c042048c..5b2b544529a1 100644 --- a/arch/blackfin/mach-bf561/boards/cm_bf561.c +++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c @@ -34,7 +34,7 @@ #include <linux/spi/spi.h> #include <linux/spi/flash.h> #include <linux/usb_isp1362.h> -#include <asm/irq.h> +#include <linux/irq.h> #include <asm/bfin5xx_spi.h> /* @@ -52,11 +52,11 @@ static struct mtd_partition bfin_spi_flash_partitions[] = { .size = 0x00020000, .offset = 0, .mask_flags = MTD_CAP_ROM - },{ + }, { .name = "kernel", .size = 0xe0000, .offset = 0x20000 - },{ + }, { .name = "file system", .size = 0x700000, .offset = 0x00100000, @@ -186,7 +186,7 @@ static struct resource smc91x_resources[] = { .start = 0x28000300, .end = 0x28000300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF0, .end = IRQ_PF0, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -206,11 +206,11 @@ static struct resource isp1362_hcd_resources[] = { .start = 0x24008000, .end = 0x24008000, .flags = IORESOURCE_MEM, - },{ + }, { .start = 0x24008004, .end = 0x24008004, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF47, .end = IRQ_PF47, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, @@ -241,25 +241,25 @@ static struct platform_device isp1362_hcd_device = { #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) static struct resource bfin_uart_resources[] = { - { - .start = 0xFFC00400, - .end = 0xFFC004FF, - .flags = IORESOURCE_MEM, - }, + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, }; static struct platform_device bfin_uart_device = { - .name = "bfin-uart", - .id = 1, - .num_resources = ARRAY_SIZE(bfin_uart_resources), - .resource = bfin_uart_resources, + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, }; #endif static struct platform_device *cm_bf561_devices[] __initdata = { #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) - &bfin_uart_device, + &bfin_uart_device, #endif #if defined(CONFIG_USB_ISP1362_HCD) || defined(CONFIG_USB_ISP1362_HCD_MODULE) diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c index 9720b5c307ab..724191da20a2 100644 --- a/arch/blackfin/mach-bf561/boards/ezkit.c +++ b/arch/blackfin/mach-bf561/boards/ezkit.c @@ -30,10 +30,9 @@ #include <linux/device.h> #include <linux/platform_device.h> #include <linux/spi/spi.h> -#include <asm/irq.h> -#include <asm/bfin5xx_spi.h> -#include <linux/interrupt.h> #include <linux/irq.h> +#include <linux/interrupt.h> +#include <asm/bfin5xx_spi.h> /* * Name the Board for the /proc/cpuinfo @@ -45,13 +44,13 @@ char *bfin_board_name = "ADDS-BF561-EZKIT"; #if defined(CONFIG_USB_ISP1760_HCD) || defined(CONFIG_USB_ISP1760_HCD_MODULE) static struct resource bfin_isp1761_resources[] = { - [0] = { + { .name = "isp1761-regs", .start = ISP1761_BASE + 0x00000000, .end = ISP1761_BASE + 0x000fffff, .flags = IORESOURCE_MEM, }, - [1] = { + { .start = ISP1761_IRQ, .end = ISP1761_IRQ, .flags = IORESOURCE_IRQ, @@ -71,7 +70,7 @@ static struct platform_device *bfin_isp1761_devices[] = { int __init bfin_isp1761_init(void) { - unsigned int num_devices=ARRAY_SIZE(bfin_isp1761_devices); + unsigned int num_devices = ARRAY_SIZE(bfin_isp1761_devices); printk(KERN_INFO "%s(): registering device resources\n", __FUNCTION__); set_irq_type(ISP1761_IRQ, IRQF_TRIGGER_FALLING); @@ -98,7 +97,7 @@ static struct resource smc91x_resources[] = { .start = 0x2C010300, .end = 0x2C010300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PF9, .end = IRQ_PF9, @@ -116,18 +115,18 @@ static struct platform_device smc91x_device = { #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) static struct resource bfin_uart_resources[] = { - { - .start = 0xFFC00400, - .end = 0xFFC004FF, - .flags = IORESOURCE_MEM, - }, + { + .start = 0xFFC00400, + .end = 0xFFC004FF, + .flags = IORESOURCE_MEM, + }, }; static struct platform_device bfin_uart_device = { - .name = "bfin-uart", - .id = 1, - .num_resources = ARRAY_SIZE(bfin_uart_resources), - .resource = bfin_uart_resources, + .name = "bfin-uart", + .id = 1, + .num_resources = ARRAY_SIZE(bfin_uart_resources), + .resource = bfin_uart_resources, }; #endif @@ -176,7 +175,7 @@ static struct platform_device *ezkit_devices[] __initdata = { &spi_bfin_master_device, #endif #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE) - &bfin_uart_device, + &bfin_uart_device, #endif }; diff --git a/arch/blackfin/mach-bf561/boards/generic_board.c b/arch/blackfin/mach-bf561/boards/generic_board.c index 585ecdd2f6a5..4dfea5da674c 100644 --- a/arch/blackfin/mach-bf561/boards/generic_board.c +++ b/arch/blackfin/mach-bf561/boards/generic_board.c @@ -30,7 +30,7 @@ #include <linux/device.h> #include <linux/platform_device.h> -#include <asm/irq.h> +#include <linux/irq.h> char *bfin_board_name = "UNKNOWN BOARD"; @@ -43,11 +43,11 @@ static struct resource smc91x_resources[] = { .start = 0x2C010300, .end = 0x2C010300 + 16, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTB, .end = IRQ_PROG_INTB, .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { /* * denotes the flag pin and is used directly if * CONFIG_IRQCHIP_DEMUX_GPIO is defined. diff --git a/arch/blackfin/mach-bf561/boards/tepla.c b/arch/blackfin/mach-bf561/boards/tepla.c index db308c7ccabb..c442eb23db5e 100644 --- a/arch/blackfin/mach-bf561/boards/tepla.c +++ b/arch/blackfin/mach-bf561/boards/tepla.c @@ -14,7 +14,7 @@ #include <linux/device.h> #include <linux/platform_device.h> -#include <asm/irq.h> +#include <linux/irq.h> char *bfin_board_name = "Tepla-BF561"; @@ -26,11 +26,11 @@ static struct resource smc91x_resources[] = { .start = 0x2C000300, .end = 0x2C000320, .flags = IORESOURCE_MEM, - },{ + }, { .start = IRQ_PROG_INTB, .end = IRQ_PROG_INTB, .flags = IORESOURCE_IRQ|IORESOURCE_IRQ_HIGHLEVEL, - },{ + }, { /* * denotes the flag pin and is used directly if * CONFIG_IRQCHIP_DEMUX_GPIO is defined. diff --git a/arch/blackfin/mach-bf561/coreb.c b/arch/blackfin/mach-bf561/coreb.c index b28582fe083c..5d1d21b4c2a7 100644 --- a/arch/blackfin/mach-bf561/coreb.c +++ b/arch/blackfin/mach-bf561/coreb.c @@ -32,8 +32,8 @@ #include <linux/device.h> #include <linux/ioport.h> #include <linux/module.h> +#include <linux/uaccess.h> #include <asm/dma.h> -#include <asm/uaccess.h> #define MODULE_VER "v0.1" @@ -202,7 +202,7 @@ static int coreb_open(struct inode *inode, struct file *file) spin_unlock_irq(&coreb_lock); return 0; - out_busy: + out_busy: spin_unlock_irq(&coreb_lock); return -EBUSY; } @@ -365,19 +365,19 @@ int __init bf561_coreb_init(void) printk(KERN_INFO "BF561 Core B driver %s initialized.\n", MODULE_VER); return 0; - release_dma_src: + release_dma_src: free_dma(CH_MEM_STREAM2_SRC); - release_dma_dest: + release_dma_dest: free_dma(CH_MEM_STREAM2_DEST); - release_data_a_sram: + release_data_a_sram: release_mem_region(0xff400000, 0x8000); - release_data_b_sram: + release_data_b_sram: release_mem_region(0xff500000, 0x8000); - release_instruction_b_sram: + release_instruction_b_sram: release_mem_region(0xff610000, 0x4000); - release_instruction_a_sram: + release_instruction_a_sram: release_mem_region(0xff600000, 0x4000); - exit: + exit: return -ENOMEM; } diff --git a/arch/blackfin/mach-bf561/dma.c b/arch/blackfin/mach-bf561/dma.c new file mode 100644 index 000000000000..89c65bb0bed3 --- /dev/null +++ b/arch/blackfin/mach-bf561/dma.c @@ -0,0 +1,131 @@ +/* + * File: arch/blackfin/mach-bf561/dma.c + * Based on: + * Author: + * + * Created: + * Description: This file contains the simple DMA Implementation for Blackfin + * + * Modified: + * Copyright 2004-2007 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <asm/blackfin.h> +#include <asm/dma.h> + +struct dma_register *base_addr[MAX_BLACKFIN_DMA_CHANNEL] = { + (struct dma_register *) DMA1_0_NEXT_DESC_PTR, + (struct dma_register *) DMA1_1_NEXT_DESC_PTR, + (struct dma_register *) DMA1_2_NEXT_DESC_PTR, + (struct dma_register *) DMA1_3_NEXT_DESC_PTR, + (struct dma_register *) DMA1_4_NEXT_DESC_PTR, + (struct dma_register *) DMA1_5_NEXT_DESC_PTR, + (struct dma_register *) DMA1_6_NEXT_DESC_PTR, + (struct dma_register *) DMA1_7_NEXT_DESC_PTR, + (struct dma_register *) DMA1_8_NEXT_DESC_PTR, + (struct dma_register *) DMA1_9_NEXT_DESC_PTR, + (struct dma_register *) DMA1_10_NEXT_DESC_PTR, + (struct dma_register *) DMA1_11_NEXT_DESC_PTR, + (struct dma_register *) DMA2_0_NEXT_DESC_PTR, + (struct dma_register *) DMA2_1_NEXT_DESC_PTR, + (struct dma_register *) DMA2_2_NEXT_DESC_PTR, + (struct dma_register *) DMA2_3_NEXT_DESC_PTR, + (struct dma_register *) DMA2_4_NEXT_DESC_PTR, + (struct dma_register *) DMA2_5_NEXT_DESC_PTR, + (struct dma_register *) DMA2_6_NEXT_DESC_PTR, + (struct dma_register *) DMA2_7_NEXT_DESC_PTR, + (struct dma_register *) DMA2_8_NEXT_DESC_PTR, + (struct dma_register *) DMA2_9_NEXT_DESC_PTR, + (struct dma_register *) DMA2_10_NEXT_DESC_PTR, + (struct dma_register *) DMA2_11_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA1_S1_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_D0_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_S0_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_D1_NEXT_DESC_PTR, + (struct dma_register *) MDMA2_S1_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_D0_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_S0_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_D1_NEXT_DESC_PTR, + (struct dma_register *) IMDMA_S1_NEXT_DESC_PTR, +}; + +int channel2irq(unsigned int channel) +{ + int ret_irq = -1; + + switch (channel) { + case CH_PPI0: + ret_irq = IRQ_PPI0; + break; + case CH_PPI1: + ret_irq = IRQ_PPI1; + break; + case CH_SPORT0_RX: + ret_irq = IRQ_SPORT0_RX; + break; + case CH_SPORT0_TX: + ret_irq = IRQ_SPORT0_TX; + break; + case CH_SPORT1_RX: + ret_irq = IRQ_SPORT1_RX; + break; + case CH_SPORT1_TX: + ret_irq = IRQ_SPORT1_TX; + break; + case CH_SPI: + ret_irq = IRQ_SPI; + break; + case CH_UART_RX: + ret_irq = IRQ_UART_RX; + break; + case CH_UART_TX: + ret_irq = IRQ_UART_TX; + break; + + case CH_MEM_STREAM0_SRC: + case CH_MEM_STREAM0_DEST: + ret_irq = IRQ_MEM_DMA0; + break; + case CH_MEM_STREAM1_SRC: + case CH_MEM_STREAM1_DEST: + ret_irq = IRQ_MEM_DMA1; + break; + case CH_MEM_STREAM2_SRC: + case CH_MEM_STREAM2_DEST: + ret_irq = IRQ_MEM_DMA2; + break; + case CH_MEM_STREAM3_SRC: + case CH_MEM_STREAM3_DEST: + ret_irq = IRQ_MEM_DMA3; + break; + + case CH_IMEM_STREAM0_SRC: + case CH_IMEM_STREAM0_DEST: + ret_irq = IRQ_IMEM_DMA0; + break; + case CH_IMEM_STREAM1_SRC: + case CH_IMEM_STREAM1_DEST: + ret_irq = IRQ_IMEM_DMA1; + break; + } + return ret_irq; +} diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S index 31cbc75c85cf..2f08bcb2dded 100644 --- a/arch/blackfin/mach-bf561/head.S +++ b/arch/blackfin/mach-bf561/head.S @@ -30,6 +30,8 @@ #include <linux/linkage.h> #include <linux/init.h> #include <asm/blackfin.h> +#include <asm/trace.h> + #if CONFIG_BFIN_KERNEL_CLOCK #include <asm/mach/mem_init.h> #endif @@ -93,6 +95,10 @@ ENTRY(__start) M2 = r0; M3 = r0; + trace_buffer_start(p0,r0); + P0 = R1; + R0 = R1; + /* Turn off the icache */ p0.l = (IMEM_CONTROL & 0xFFFF); p0.h = (IMEM_CONTROL >> 16); diff --git a/arch/blackfin/mach-bf561/ints-priority.c b/arch/blackfin/mach-bf561/ints-priority.c index 86e3b0ee93f4..09b541b0f7c2 100644 --- a/arch/blackfin/mach-bf561/ints-priority.c +++ b/arch/blackfin/mach-bf561/ints-priority.c @@ -28,8 +28,8 @@ */ #include <linux/module.h> +#include <linux/irq.h> #include <asm/blackfin.h> -#include <asm/irq.h> void program_IAR(void) { diff --git a/arch/blackfin/mach-common/Makefile b/arch/blackfin/mach-common/Makefile index d3a49073d196..0279ede70392 100644 --- a/arch/blackfin/mach-common/Makefile +++ b/arch/blackfin/mach-common/Makefile @@ -4,9 +4,9 @@ obj-y := \ cache.o cacheinit.o cplbhdlr.o cplbmgr.o entry.o \ - interrupt.o lock.o dpmc.o irqpanic.o + interrupt.o lock.o irqpanic.o obj-$(CONFIG_CPLB_INFO) += cplbinfo.o obj-$(CONFIG_BFIN_SINGLE_CORE) += ints-priority-sc.o obj-$(CONFIG_BFIN_DUAL_CORE) += ints-priority-dc.o -obj-$(CONFIG_PM) += pm.o +obj-$(CONFIG_PM) += pm.o dpmc.o diff --git a/arch/blackfin/mach-common/cacheinit.S b/arch/blackfin/mach-common/cacheinit.S index 7924a90d9658..9d475623b724 100644 --- a/arch/blackfin/mach-common/cacheinit.S +++ b/arch/blackfin/mach-common/cacheinit.S @@ -38,104 +38,37 @@ .text +#ifdef ANOMALY_05000125 #if defined(CONFIG_BLKFIN_CACHE) -ENTRY(_bfin_icache_init) +ENTRY(_bfin_write_IMEM_CONTROL) - /* Initialize Instruction CPLBS */ - - I0.L = (ICPLB_ADDR0 & 0xFFFF); - I0.H = (ICPLB_ADDR0 >> 16); - - I1.L = (ICPLB_DATA0 & 0xFFFF); - I1.H = (ICPLB_DATA0 >> 16); - - I2.L = _icplb_table; - I2.H = _icplb_table; - - r1 = -1; /* end point comparison */ - r3 = 15; /* max counter */ - -/* read entries from table */ - -.Lread_iaddr: - R0 = [I2++]; - CC = R0 == R1; - IF CC JUMP .Lidone; - [I0++] = R0; - -.Lread_idata: - R2 = [I2++]; - [I1++] = R2; - R3 = R3 + R1; - CC = R3 == R1; - IF !CC JUMP .Lread_iaddr; - -.Lidone: /* Enable Instruction Cache */ P0.l = (IMEM_CONTROL & 0xFFFF); P0.h = (IMEM_CONTROL >> 16); - R1 = [P0]; - R0 = (IMC | ENICPLB); - R0 = R0 | R1; /* Anomaly 05000125 */ - CLI R2; + CLI R1; SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ .align 8; [P0] = R0; SSYNC; - STI R2; + STI R1; RTS; -ENDPROC(_bfin_icache_init) +ENDPROC(_bfin_write_IMEM_CONTROL) #endif #if defined(CONFIG_BLKFIN_DCACHE) -ENTRY(_bfin_dcache_init) - - /* Initialize Data CPLBS */ - - I0.L = (DCPLB_ADDR0 & 0xFFFF); - I0.H = (DCPLB_ADDR0 >> 16); - - I1.L = (DCPLB_DATA0 & 0xFFFF); - I1.H = (DCPLB_DATA0 >> 16); - - I2.L = _dcplb_table; - I2.H = _dcplb_table; - - R1 = -1; /* end point comparison */ - R3 = 15; /* max counter */ - - /* read entries from table */ -.Lread_daddr: - R0 = [I2++]; - cc = R0 == R1; - IF CC JUMP .Lddone; - [I0++] = R0; - -.Lread_ddata: - R2 = [I2++]; - [I1++] = R2; - R3 = R3 + R1; - CC = R3 == R1; - IF !CC JUMP .Lread_daddr; -.Lddone: - P0.L = (DMEM_CONTROL & 0xFFFF); - P0.H = (DMEM_CONTROL >> 16); - R1 = [P0]; - - R0 = DMEM_CNTR; - - R0 = R0 | R1; - /* Anomaly 05000125 */ - CLI R2; +ENTRY(_bfin_write_DMEM_CONTROL) + CLI R1; SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ .align 8; [P0] = R0; SSYNC; - STI R2; + STI R1; RTS; -ENDPROC(_bfin_dcache_init) +ENDPROC(_bfin_write_DMEM_CONTROL) +#endif + #endif diff --git a/arch/blackfin/mach-common/cplbinfo.c b/arch/blackfin/mach-common/cplbinfo.c index caa9623e6bd6..785ca9816971 100644 --- a/arch/blackfin/mach-common/cplbinfo.c +++ b/arch/blackfin/mach-common/cplbinfo.c @@ -31,11 +31,10 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/proc_fs.h> +#include <linux/uaccess.h> #include <asm/current.h> -#include <asm/uaccess.h> #include <asm/system.h> - #include <asm/cplb.h> #include <asm/blackfin.h> @@ -92,8 +91,7 @@ static char *cplb_print_entry(char *buf, int type) } else buf += sprintf(buf, "Data CPLB entry:\n"); - buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\ -\tiCount\toCount\n"); + buf += sprintf(buf, "Address\t\tData\tSize\tValid\tLocked\tSwapin\n\tiCount\toCount\n"); while (*p_addr != 0xffffffff) { entry = cplb_find_entry(cplb_addr, cplb_data, *p_addr, *p_data); @@ -144,8 +142,7 @@ static int cplbinfo_proc_output(char *buf) p = buf; - p += sprintf(p, - "------------------ CPLB Information ------------------\n\n"); + p += sprintf(p, "------------------ CPLB Information ------------------\n\n"); if (bfin_read_IMEM_CONTROL() & ENICPLB) p = cplb_print_entry(p, CPLB_I); @@ -191,9 +188,9 @@ static int __init cplbinfo_init(void) { struct proc_dir_entry *entry; - if ((entry = create_proc_entry("cplbinfo", 0, NULL)) == NULL) { + entry = create_proc_entry("cplbinfo", 0, NULL); + if (!entry) return -ENOMEM; - } entry->read_proc = cplbinfo_read_proc; entry->write_proc = cplbinfo_write_proc; diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S index 40045b1386ad..d61bba98fb54 100644 --- a/arch/blackfin/mach-common/entry.S +++ b/arch/blackfin/mach-common/entry.S @@ -49,34 +49,15 @@ #include <linux/linkage.h> +#include <linux/unistd.h> #include <asm/blackfin.h> -#include <asm/unistd.h> #include <asm/errno.h> #include <asm/thread_info.h> /* TIF_NEED_RESCHED */ #include <asm/asm-offsets.h> +#include <asm/trace.h> #include <asm/mach-common/context.S> -#ifdef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE - /* - * TODO: this should be proper save/restore, but for now - * we'll just cheat and use 0x1/0x13 - */ -# define DEBUG_START_HWTRACE \ - P5.l = LO(TBUFCTL); \ - P5.h = HI(TBUFCTL); \ - R7 = 0x13; \ - [P5] = R7; -# define DEBUG_STOP_HWTRACE \ - P5.l = LO(TBUFCTL); \ - P5.h = HI(TBUFCTL); \ - R7 = 0x01; \ - [P5] = R7; -#else -# define DEBUG_START_HWTRACE -# define DEBUG_STOP_HWTRACE -#endif - #ifdef CONFIG_EXCPT_IRQ_SYSC_L1 .section .l1.text #else @@ -110,25 +91,14 @@ ENTRY(_ex_icplb) ASTAT = [sp++]; SAVE_ALL_SYS call __cplb_hdr; - DEBUG_START_HWTRACE + DEBUG_START_HWTRACE(p5, r7) RESTORE_ALL_SYS SP = RETN; rtx; ENDPROC(_ex_icplb) -ENTRY(_ex_spinlock) - /* Transform this into a syscall - twiddle the syscall vector. */ - p5.l = lo(EVT15); - p5.h = hi(EVT15); - r7.l = _spinlock_bh; - r7.h = _spinlock_bh; - [p5] = r7; - csync; - /* Fall through. */ -ENDPROC(_ex_spinlock) - ENTRY(_ex_syscall) - DEBUG_START_HWTRACE + DEBUG_START_HWTRACE(p5, r7) (R7:6,P5:4) = [sp++]; ASTAT = [sp++]; raise 15; /* invoked by TRAP #0, for sys call */ @@ -136,26 +106,6 @@ ENTRY(_ex_syscall) rtx ENDPROC(_ex_syscall) -ENTRY(_spinlock_bh) - SAVE_ALL_SYS - /* To end up here, vector 15 was changed - so we have to change it - * back. - */ - p0.l = lo(EVT15); - p0.h = hi(EVT15); - p1.l = _evt_system_call; - p1.h = _evt_system_call; - [p0] = p1; - csync; - r0 = [sp + PT_R0]; - sp += -12; - call _sys_bfin_spinlock; - sp += 12; - [SP + PT_R0] = R0; - RESTORE_ALL_SYS - rti; -ENDPROC(_spinlock_bh) - ENTRY(_ex_soft_bp) r7 = retx; r7 += -2; @@ -186,7 +136,7 @@ ENTRY(_ex_single_step) if !cc jump _ex_trap_c; _return_from_exception: - DEBUG_START_HWTRACE + DEBUG_START_HWTRACE(p5, r7) #ifdef ANOMALY_05000257 R7=LC0; LC0=R7; @@ -208,7 +158,7 @@ ENTRY(_handle_bad_cplb) * need to make a CPLB exception look like a normal exception */ - DEBUG_START_HWTRACE + DEBUG_START_HWTRACE(p5, r7) RESTORE_ALL_SYS [--sp] = ASTAT; [--sp] = (R7:6, P5:4); @@ -251,7 +201,7 @@ ENTRY(_ex_trap_c) R6 = SEQSTAT; [P5] = R6; - DEBUG_START_HWTRACE + DEBUG_START_HWTRACE(p5, r7) (R7:6,P5:4) = [sp++]; ASTAT = [sp++]; SP = RETN; @@ -335,7 +285,7 @@ ENTRY(_trap) /* Exception: 4th entry into system event table(supervisor mode)*/ /* Try to deal with syscalls quickly. */ [--sp] = ASTAT; [--sp] = (R7:6, P5:4); - DEBUG_STOP_HWTRACE + DEBUG_STOP_HWTRACE(p5, r7) r7 = SEQSTAT; /* reason code is in bit 5:0 */ r6.l = lo(SEQSTAT_EXCAUSE); r6.h = hi(SEQSTAT_EXCAUSE); @@ -741,6 +691,10 @@ _schedule_and_signal_from_int: r0 = [p0]; sti r0; + r0 = sp; + sp += -12; + call _finish_atomic_sections; + sp += 12; jump.s .Lresume_userspace; _schedule_and_signal: @@ -790,14 +744,14 @@ ENDPROC(_init_exception_buff) ALIGN _extable: /* entry for each EXCAUSE[5:0] - * This table bmust be in sync with the table in ./kernel/traps.c + * This table must be in sync with the table in ./kernel/traps.c * EXCPT instruction can provide 4 bits of EXCAUSE, allowing 16 to be user defined */ .long _ex_syscall; /* 0x00 - User Defined - Linux Syscall */ .long _ex_soft_bp /* 0x01 - User Defined - Software breakpoint */ .long _ex_trap_c /* 0x02 - User Defined */ - .long _ex_trap_c /* 0x03 - User Defined - Atomic test and set service */ - .long _ex_spinlock /* 0x04 - User Defined */ + .long _ex_trap_c /* 0x03 - User Defined - userspace stack overflow */ + .long _ex_trap_c /* 0x04 - User Defined */ .long _ex_trap_c /* 0x05 - User Defined */ .long _ex_trap_c /* 0x06 - User Defined */ .long _ex_trap_c /* 0x07 - User Defined */ diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S index 8be548e061bf..203e20709163 100644 --- a/arch/blackfin/mach-common/interrupt.S +++ b/arch/blackfin/mach-common/interrupt.S @@ -34,6 +34,7 @@ #include <linux/linkage.h> #include <asm/entry.h> #include <asm/asm-offsets.h> +#include <asm/trace.h> #include <asm/mach-common/context.S> @@ -170,10 +171,9 @@ ENTRY(_evt_ivhw) r7.l = W[p5]; 1: #endif - p0.l = lo(TBUFCTL); - p0.h = hi(TBUFCTL); - r0 = 1; - [p0] = r0; + + trace_buffer_stop(p0, r0); + r0 = IRQ_HWERR; r1 = sp; diff --git a/arch/blackfin/mach-common/ints-priority-dc.c b/arch/blackfin/mach-common/ints-priority-dc.c index 80943bbd37c2..6b9fd03ce835 100644 --- a/arch/blackfin/mach-common/ints-priority-dc.c +++ b/arch/blackfin/mach-common/ints-priority-dc.c @@ -183,7 +183,7 @@ static void bf561_gpio_ack_irq(unsigned int irq) { u16 gpionr = irq - IRQ_PF0; - if(gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + if (gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { set_gpio_data(gpionr, 0); SSYNC(); } @@ -193,7 +193,7 @@ static void bf561_gpio_mask_ack_irq(unsigned int irq) { u16 gpionr = irq - IRQ_PF0; - if(gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { + if (gpio_edge_triggered[gpio_bank(gpionr)] & gpio_bit(gpionr)) { set_gpio_data(gpionr, 0); SSYNC(); } @@ -222,7 +222,7 @@ static unsigned int bf561_gpio_irq_startup(unsigned int irq) if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { ret = gpio_request(gpionr, NULL); - if(ret) + if (ret) return ret; } @@ -262,7 +262,7 @@ static int bf561_gpio_irq_type(unsigned int irq, unsigned int type) if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { ret = gpio_request(gpionr, NULL); - if(ret) + if (ret) return ret; } @@ -371,6 +371,9 @@ int __init init_arch_irq(void) bfin_write_SICA_IMASK1(SIC_UNMASK_ALL); SSYNC(); + bfin_write_SICA_IWR0(IWR_ENABLE_ALL); + bfin_write_SICA_IWR1(IWR_ENABLE_ALL); + local_irq_disable(); init_exception_buff(); @@ -393,7 +396,7 @@ int __init init_arch_irq(void) bfin_write_EVT15(evt_system_call); CSYNC(); - for (irq = 0; irq < SYS_IRQS; irq++) { + for (irq = 0; irq <= SYS_IRQS; irq++) { if (irq <= IRQ_CORETMR) set_irq_chip(irq, &bf561_core_irqchip); else diff --git a/arch/blackfin/mach-common/ints-priority-sc.c b/arch/blackfin/mach-common/ints-priority-sc.c index 2cfc7d5aec5c..28a878c3577a 100644 --- a/arch/blackfin/mach-common/ints-priority-sc.c +++ b/arch/blackfin/mach-common/ints-priority-sc.c @@ -13,7 +13,7 @@ * 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> * 2003 Metrowerks/Motorola * 2003 Bas Vermeulen <bas@buyways.nl> - * Copyright 2004-2006 Analog Devices Inc. + * Copyright 2004-2007 Analog Devices Inc. * * Bugs: Enter bugs at http://blackfin.uclinux.org/ * @@ -65,9 +65,9 @@ atomic_t num_spurious; struct ivgx { /* irq number for request_irq, available in mach-bf533/irq.h */ - int irqno; + unsigned int irqno; /* corresponding bit in the SIC_ISR register */ - int isrflag; + unsigned int isrflag; } ivg_table[NR_PERI_INTS]; struct ivg_slice { @@ -88,17 +88,16 @@ static void __init search_IAR(void) for (ivg = 0; ivg <= IVG13 - IVG7; ivg++) { int irqn; - ivg7_13[ivg].istop = ivg7_13[ivg].ifirst = - &ivg_table[irq_pos]; + ivg7_13[ivg].istop = ivg7_13[ivg].ifirst = &ivg_table[irq_pos]; for (irqn = 0; irqn < NR_PERI_INTS; irqn++) { int iar_shift = (irqn & 7) * 4; if (ivg == (0xf & - bfin_read32((unsigned long *) SIC_IAR0 + + bfin_read32((unsigned long *)SIC_IAR0 + (irqn >> 3)) >> iar_shift)) { ivg_table[irq_pos].irqno = IVG7 + irqn; - ivg_table[irq_pos].isrflag = 1 << irqn; + ivg_table[irq_pos].isrflag = 1 << (irqn % 32); ivg7_13[ivg].istop++; irq_pos++; } @@ -141,15 +140,31 @@ static void bfin_core_unmask_irq(unsigned int irq) static void bfin_internal_mask_irq(unsigned int irq) { +#ifndef CONFIG_BF54x bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() & ~(1 << (irq - (IRQ_CORETMR + 1)))); +#else + unsigned mask_bank, mask_bit; + mask_bank = (irq - (IRQ_CORETMR + 1)) / 32; + mask_bit = (irq - (IRQ_CORETMR + 1)) % 32; + bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) & + ~(1 << mask_bit)); +#endif SSYNC(); } static void bfin_internal_unmask_irq(unsigned int irq) { +#ifndef CONFIG_BF54x bfin_write_SIC_IMASK(bfin_read_SIC_IMASK() | (1 << (irq - (IRQ_CORETMR + 1)))); +#else + unsigned mask_bank, mask_bit; + mask_bank = (irq - (IRQ_CORETMR + 1)) / 32; + mask_bit = (irq - (IRQ_CORETMR + 1)) % 32; + bfin_write_SIC_IMASK(mask_bank, bfin_read_SIC_IMASK(mask_bank) | + (1 << mask_bit)); +#endif SSYNC(); } @@ -206,7 +221,7 @@ static struct irq_chip bfin_generic_error_irqchip = { }; static void bfin_demux_error_irq(unsigned int int_err_irq, - struct irq_desc *intb_desc) + struct irq_desc *intb_desc) { int irq = 0; @@ -270,8 +285,8 @@ static void bfin_demux_error_irq(unsigned int int_err_irq, } pr_debug("IRQ %d:" - " MASKED PERIPHERAL ERROR INTERRUPT ASSERTED\n", - irq); + " MASKED PERIPHERAL ERROR INTERRUPT ASSERTED\n", + irq); } } else printk(KERN_ERR @@ -279,11 +294,10 @@ static void bfin_demux_error_irq(unsigned int int_err_irq, " INTERRUPT ASSERTED BUT NO SOURCE FOUND\n", __FUNCTION__, __FILE__, __LINE__); - } #endif /* BF537_GENERIC_ERROR_INT_DEMUX */ -#ifdef CONFIG_IRQCHIP_DEMUX_GPIO +#if defined(CONFIG_IRQCHIP_DEMUX_GPIO) && !defined(CONFIG_BF54x) static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; static unsigned short gpio_edge_triggered[gpio_bank(MAX_BLACKFIN_GPIOS)]; @@ -361,8 +375,7 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) } if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | - IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) - { + IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { ret = gpio_request(gpionr, NULL); if (ret) @@ -407,7 +420,6 @@ static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) return 0; } - static struct irq_chip bfin_gpio_irqchip = { .ack = bfin_gpio_ack_irq, .mask = bfin_gpio_mask_irq, @@ -419,20 +431,20 @@ static struct irq_chip bfin_gpio_irqchip = { }; static void bfin_demux_gpio_irq(unsigned int intb_irq, - struct irq_desc *intb_desc) + struct irq_desc *intb_desc) { u16 i; + struct irq_desc *desc; - for (i = 0; i < MAX_BLACKFIN_GPIOS; i+=16) { + for (i = 0; i < MAX_BLACKFIN_GPIOS; i += 16) { int irq = IRQ_PF0 + i; int flag_d = get_gpiop_data(i); int mask = - flag_d & (gpio_enabled[gpio_bank(i)] & - get_gpiop_maska(i)); + flag_d & (gpio_enabled[gpio_bank(i)] & get_gpiop_maska(i)); while (mask) { if (mask & 1) { - struct irq_desc *desc = irq_desc + irq; + desc = irq_desc + irq; desc->handle_irq(irq, desc); } irq++; @@ -441,6 +453,264 @@ static void bfin_demux_gpio_irq(unsigned int intb_irq, } } +#else /* CONFIG_IRQCHIP_DEMUX_GPIO */ + +#define NR_PINT_SYS_IRQS 4 +#define NR_PINT_BITS 32 +#define NR_PINTS 160 +#define IRQ_NOT_AVAIL 0xFF + +#define PINT_2_BANK(x) ((x) >> 5) +#define PINT_2_BIT(x) ((x) & 0x1F) +#define PINT_BIT(x) (1 << (PINT_2_BIT(x))) + +static unsigned char irq2pint_lut[NR_PINTS]; +static unsigned char pint2irq_lut[NR_PINT_SYS_IRQS * NR_PINT_BITS]; + +struct pin_int_t { + unsigned int mask_set; + unsigned int mask_clear; + unsigned int request; + unsigned int assign; + unsigned int edge_set; + unsigned int edge_clear; + unsigned int invert_set; + unsigned int invert_clear; + unsigned int pinstate; + unsigned int latch; +}; + +static struct pin_int_t *pint[NR_PINT_SYS_IRQS] = { + (struct pin_int_t *)PINT0_MASK_SET, + (struct pin_int_t *)PINT1_MASK_SET, + (struct pin_int_t *)PINT2_MASK_SET, + (struct pin_int_t *)PINT3_MASK_SET, +}; + +unsigned short get_irq_base(u8 bank, u8 bmap) +{ + + u16 irq_base; + + if (bank < 2) { /*PA-PB */ + irq_base = IRQ_PA0 + bmap * 16; + } else { /*PC-PJ */ + irq_base = IRQ_PC0 + bmap * 16; + } + + return irq_base; + +} + + /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */ +void init_pint_lut(void) +{ + u16 bank, bit, irq_base, bit_pos; + u32 pint_assign; + u8 bmap; + + memset(irq2pint_lut, IRQ_NOT_AVAIL, sizeof(irq2pint_lut)); + + for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) { + + pint_assign = pint[bank]->assign; + + for (bit = 0; bit < NR_PINT_BITS; bit++) { + + bmap = (pint_assign >> ((bit / 8) * 8)) & 0xFF; + + irq_base = get_irq_base(bank, bmap); + + irq_base += (bit % 8) + ((bit / 8) & 1 ? 8 : 0); + bit_pos = bit + bank * NR_PINT_BITS; + + pint2irq_lut[bit_pos] = irq_base - SYS_IRQS; + irq2pint_lut[irq_base - SYS_IRQS] = bit_pos; + + } + + } + +} + +static unsigned short gpio_enabled[gpio_bank(MAX_BLACKFIN_GPIOS)]; + +static void bfin_gpio_ack_irq(unsigned int irq) +{ + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + + pint[PINT_2_BANK(pint_val)]->request = PINT_BIT(pint_val); + SSYNC(); +} + +static void bfin_gpio_mask_ack_irq(unsigned int irq) +{ + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + u32 pintbit = PINT_BIT(pint_val); + u8 bank = PINT_2_BANK(pint_val); + + pint[bank]->request = pintbit; + pint[bank]->mask_clear = pintbit; + SSYNC(); +} + +static void bfin_gpio_mask_irq(unsigned int irq) +{ + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + + pint[PINT_2_BANK(pint_val)]->mask_clear = PINT_BIT(pint_val); + SSYNC(); +} + +static void bfin_gpio_unmask_irq(unsigned int irq) +{ + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + u32 pintbit = PINT_BIT(pint_val); + u8 bank = PINT_2_BANK(pint_val); + + pint[bank]->request = pintbit; + pint[bank]->mask_set = pintbit; + SSYNC(); +} + +static unsigned int bfin_gpio_irq_startup(unsigned int irq) +{ + unsigned int ret; + u16 gpionr = irq - IRQ_PA0; + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + + if (pint_val == IRQ_NOT_AVAIL) + return -ENODEV; + + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + ret = gpio_request(gpionr, NULL); + if (ret) + return ret; + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + bfin_gpio_unmask_irq(irq); + + return ret; +} + +static void bfin_gpio_irq_shutdown(unsigned int irq) +{ + bfin_gpio_mask_irq(irq); + gpio_free(irq - IRQ_PA0); + gpio_enabled[gpio_bank(irq - IRQ_PA0)] &= ~gpio_bit(irq - IRQ_PA0); +} + +static int bfin_gpio_irq_type(unsigned int irq, unsigned int type) +{ + + unsigned int ret; + u16 gpionr = irq - IRQ_PA0; + u8 pint_val = irq2pint_lut[irq - SYS_IRQS]; + u32 pintbit = PINT_BIT(pint_val); + u8 bank = PINT_2_BANK(pint_val); + + if (pint_val == IRQ_NOT_AVAIL) + return -ENODEV; + + if (type == IRQ_TYPE_PROBE) { + /* only probe unenabled GPIO interrupt lines */ + if (gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr)) + return 0; + type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING; + } + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING | + IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) { + if (!(gpio_enabled[gpio_bank(gpionr)] & gpio_bit(gpionr))) { + ret = gpio_request(gpionr, NULL); + if (ret) + return ret; + } + + gpio_enabled[gpio_bank(gpionr)] |= gpio_bit(gpionr); + } else { + gpio_enabled[gpio_bank(gpionr)] &= ~gpio_bit(gpionr); + return 0; + } + + gpio_direction_input(gpionr); + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) { + pint[bank]->edge_set = pintbit; + } else { + pint[bank]->edge_clear = pintbit; + } + + if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW))) + pint[bank]->invert_set = pintbit; /* low or falling edge denoted by one */ + else + pint[bank]->invert_set = pintbit; /* high or rising edge denoted by zero */ + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + pint[bank]->invert_set = pintbit; + else + pint[bank]->invert_set = pintbit; + + SSYNC(); + + if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) + set_irq_handler(irq, handle_edge_irq); + else + set_irq_handler(irq, handle_level_irq); + + return 0; +} + +static struct irq_chip bfin_gpio_irqchip = { + .ack = bfin_gpio_ack_irq, + .mask = bfin_gpio_mask_irq, + .mask_ack = bfin_gpio_mask_ack_irq, + .unmask = bfin_gpio_unmask_irq, + .set_type = bfin_gpio_irq_type, + .startup = bfin_gpio_irq_startup, + .shutdown = bfin_gpio_irq_shutdown +}; + +static void bfin_demux_gpio_irq(unsigned int intb_irq, + struct irq_desc *intb_desc) +{ + u8 bank, pint_val; + u32 request, irq; + struct irq_desc *desc; + + switch (intb_irq) { + case IRQ_PINT0: + bank = 0; + break; + case IRQ_PINT2: + bank = 2; + break; + case IRQ_PINT3: + bank = 3; + break; + case IRQ_PINT1: + bank = 1; + break; + default: + return; + } + + pint_val = bank * NR_PINT_BITS; + + request = pint[bank]->request; + + while (request) { + if (request & 1) { + irq = pint2irq_lut[pint_val] + SYS_IRQS; + desc = irq_desc + irq; + desc->handle_irq(irq, desc); + } + pint_val++; + request >>= 1; + } + +} #endif /* CONFIG_IRQCHIP_DEMUX_GPIO */ /* @@ -452,7 +722,18 @@ int __init init_arch_irq(void) int irq; unsigned long ilat = 0; /* Disable all the peripheral intrs - page 4-29 HW Ref manual */ +#ifdef CONFIG_BF54x + bfin_write_SIC_IMASK0(SIC_UNMASK_ALL); + bfin_write_SIC_IMASK1(SIC_UNMASK_ALL); + bfin_write_SIC_IMASK2(SIC_UNMASK_ALL); + bfin_write_SIC_IWR0(IWR_ENABLE_ALL); + bfin_write_SIC_IWR1(IWR_ENABLE_ALL); + bfin_write_SIC_IWR2(IWR_ENABLE_ALL); +#else bfin_write_SIC_IMASK(SIC_UNMASK_ALL); + bfin_write_SIC_IWR(IWR_ENABLE_ALL); +#endif + SSYNC(); local_irq_disable(); @@ -475,7 +756,18 @@ int __init init_arch_irq(void) bfin_write_EVT15(evt_system_call); CSYNC(); - for (irq = 0; irq < SYS_IRQS; irq++) { +#if defined(CONFIG_IRQCHIP_DEMUX_GPIO) && defined(CONFIG_BF54x) +#ifdef CONFIG_PINTx_REASSIGN + pint[0]->assign = CONFIG_PINT0_ASSIGN; + pint[1]->assign = CONFIG_PINT1_ASSIGN; + pint[2]->assign = CONFIG_PINT2_ASSIGN; + pint[3]->assign = CONFIG_PINT3_ASSIGN; +#endif + /* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */ + init_pint_lut(); +#endif + + for (irq = 0; irq <= SYS_IRQS; irq++) { if (irq <= IRQ_CORETMR) set_irq_chip(irq, &bfin_core_irqchip); else @@ -484,20 +776,42 @@ int __init init_arch_irq(void) if (irq != IRQ_GENERIC_ERROR) { #endif + switch (irq) { #ifdef CONFIG_IRQCHIP_DEMUX_GPIO - if ((irq != IRQ_PROG_INTA) /*PORT F & G MASK_A Interrupt*/ -# if defined(BF537_FAMILY) && !(defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) - && (irq != IRQ_MAC_RX) /*PORT H MASK_A Interrupt*/ -# endif - ) { +#ifndef CONFIG_BF54x + case IRQ_PROG_INTA: + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; +#if defined(BF537_FAMILY) && !(defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)) + case IRQ_MAC_RX: + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; #endif - set_irq_handler(irq, handle_simple_irq); -#ifdef CONFIG_IRQCHIP_DEMUX_GPIO - } else { +#else + case IRQ_PINT0: set_irq_chained_handler(irq, bfin_demux_gpio_irq); - } + break; + case IRQ_PINT1: + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; + case IRQ_PINT2: + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; + case IRQ_PINT3: + set_irq_chained_handler(irq, + bfin_demux_gpio_irq); + break; +#endif /*CONFIG_BF54x */ #endif + default: + set_irq_handler(irq, handle_simple_irq); + break; + } #ifdef BF537_GENERIC_ERROR_INT_DEMUX } else { @@ -513,7 +827,11 @@ int __init init_arch_irq(void) #endif #ifdef CONFIG_IRQCHIP_DEMUX_GPIO +#ifndef CONFIG_BF54x for (irq = IRQ_PF0; irq < NR_IRQS; irq++) { +#else + for (irq = IRQ_PA0; irq < NR_IRQS; irq++) { +#endif set_irq_chip(irq, &bfin_gpio_irqchip); /* if configured as edge, then will be changed to do_edge_IRQ */ set_irq_handler(irq, handle_level_irq); @@ -526,8 +844,7 @@ int __init init_arch_irq(void) bfin_write_ILAT(ilat); CSYNC(); - printk(KERN_INFO - "Configuring Blackfin Priority Driven Interrupts\n"); + printk(KERN_INFO "Configuring Blackfin Priority Driven Interrupts\n"); /* IMASK=xxx is equivalent to STI xx or irq_flags=xx, * local_irq_enable() */ @@ -538,14 +855,13 @@ int __init init_arch_irq(void) /* Enable interrupts IVG7-15 */ irq_flags = irq_flags | IMASK_IVG15 | IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 | - IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | - IMASK_IVGHW; + IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW; return 0; } #ifdef CONFIG_DO_IRQ_L1 -void do_irq(int vec, struct pt_regs *fp)__attribute__((l1_text)); +void do_irq(int vec, struct pt_regs *fp) __attribute__((l1_text)); #endif void do_irq(int vec, struct pt_regs *fp) @@ -555,9 +871,25 @@ void do_irq(int vec, struct pt_regs *fp) } else { struct ivgx *ivg = ivg7_13[vec - IVG7].ifirst; struct ivgx *ivg_stop = ivg7_13[vec - IVG7].istop; - unsigned long sic_status; +#ifdef CONFIG_BF54x + unsigned long sic_status[3]; SSYNC(); + sic_status[0] = bfin_read_SIC_ISR(0) & bfin_read_SIC_IMASK(0); + sic_status[1] = bfin_read_SIC_ISR(1) & bfin_read_SIC_IMASK(1); + sic_status[2] = bfin_read_SIC_ISR(2) & bfin_read_SIC_IMASK(2); + + for (;; ivg++) { + if (ivg >= ivg_stop) { + atomic_inc(&num_spurious); + return; + } + if (sic_status[(ivg->irqno - IVG7) / 32] & ivg->isrflag) + break; + } +#else + unsigned long sic_status; + SSYNC(); sic_status = bfin_read_SIC_IMASK() & bfin_read_SIC_ISR(); for (;; ivg++) { @@ -567,6 +899,7 @@ void do_irq(int vec, struct pt_regs *fp) } else if (sic_status & ivg->isrflag) break; } +#endif vec = ivg->irqno; } asm_do_IRQ(vec, fp); diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index 150ef5d088dc..1772d8d2c1a7 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -35,10 +35,10 @@ #include <linux/pm.h> #include <linux/sched.h> #include <linux/proc_fs.h> +#include <linux/io.h> +#include <linux/irq.h> -#include <asm/io.h> #include <asm/dpmc.h> -#include <asm/irq.h> #include <asm/gpio.h> #ifdef CONFIG_PM_WAKEUP_GPIO_POLAR_H diff --git a/arch/blackfin/mm/blackfin_sram.c b/arch/blackfin/mm/blackfin_sram.c index 68107924639e..16c6169ed01b 100644 --- a/arch/blackfin/mm/blackfin_sram.c +++ b/arch/blackfin/mm/blackfin_sram.c @@ -87,7 +87,7 @@ void __init l1sram_init(void) L1_SCRATCH_LENGTH >> 10); memset(&l1_ssram, 0x00, sizeof(l1_ssram)); - l1_ssram[0].paddr = (void*)L1_SCRATCH_START; + l1_ssram[0].paddr = (void *)L1_SCRATCH_START; l1_ssram[0].size = L1_SCRATCH_LENGTH; l1_ssram[0].flag = SRAM_SLT_FREE; @@ -126,7 +126,7 @@ void __init l1_inst_sram_init(void) { #if L1_CODE_LENGTH != 0 memset(&l1_inst_sram, 0x00, sizeof(l1_inst_sram)); - l1_inst_sram[0].paddr = (void*)L1_CODE_START + (_etext_l1 - _stext_l1); + l1_inst_sram[0].paddr = (void *)L1_CODE_START + (_etext_l1 - _stext_l1); l1_inst_sram[0].size = L1_CODE_LENGTH - (_etext_l1 - _stext_l1); l1_inst_sram[0].flag = SRAM_SLT_FREE; diff --git a/arch/blackfin/mm/init.c b/arch/blackfin/mm/init.c index 570356dbe028..68459cc052a1 100644 --- a/arch/blackfin/mm/init.c +++ b/arch/blackfin/mm/init.c @@ -29,8 +29,8 @@ #include <linux/swap.h> #include <linux/bootmem.h> +#include <linux/uaccess.h> #include <asm/bfin-global.h> -#include <asm/uaccess.h> #include <asm/l1layout.h> #include "blackfin_sram.h" @@ -168,42 +168,31 @@ void __init mem_init(void) } } -#ifdef CONFIG_BLK_DEV_INITRD -void __init free_initrd_mem(unsigned long start, unsigned long end) +static __init void free_init_pages(const char *what, unsigned long begin, unsigned long end) { - int pages = 0; - for (; start < end; start += PAGE_SIZE) { - ClearPageReserved(virt_to_page(start)); - init_page_count(virt_to_page(start)); - free_page(start); + unsigned long addr; + /* next to check that the page we free is not a partial page */ + for (addr = begin; addr + PAGE_SIZE <= end; addr += PAGE_SIZE) { + ClearPageReserved(virt_to_page(addr)); + init_page_count(virt_to_page(addr)); + free_page(addr); totalram_pages++; - pages++; } - printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n", pages); + printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10); +} + +#ifdef CONFIG_BLK_DEV_INITRD +void __init free_initrd_mem(unsigned long start, unsigned long end) +{ + free_init_pages("initrd memory", start, end); } #endif void __init free_initmem(void) { #ifdef CONFIG_RAMKERNEL - unsigned long addr; - /* - * the following code should be cool even if these sections - * are not page aligned. - */ - addr = PAGE_ALIGN((unsigned long)(__init_begin)); - /* next to check that the page we free is not a partial page */ - for (; addr + PAGE_SIZE < (unsigned long)(__init_end); - addr += PAGE_SIZE) { - ClearPageReserved(virt_to_page(addr)); - init_page_count(virt_to_page(addr)); - free_page(addr); - totalram_pages++; - } - printk(KERN_NOTICE - "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", - (addr - PAGE_ALIGN((long)__init_begin)) >> 10, - (int)(PAGE_ALIGN((unsigned long)(__init_begin))), - (int)(addr - PAGE_SIZE)); + free_init_pages("unused kernel memory", + (unsigned long)(&__init_begin), + (unsigned long)(&__init_end)); #endif } diff --git a/arch/blackfin/oprofile/common.c b/arch/blackfin/oprofile/common.c index 009a1700c854..cb8b8d5af34f 100644 --- a/arch/blackfin/oprofile/common.c +++ b/arch/blackfin/oprofile/common.c @@ -33,12 +33,12 @@ #include <linux/smp.h> #include <linux/errno.h> #include <linux/mutex.h> +#include <linux/ptrace.h> +#include <linux/irq.h> +#include <linux/io.h> -#include <asm/ptrace.h> #include <asm/system.h> #include <asm/blackfin.h> -#include <asm/irq.h> -#include <asm/io.h> #include "op_blackfin.h" diff --git a/arch/blackfin/oprofile/op_model_bf533.c b/arch/blackfin/oprofile/op_model_bf533.c index b7a20a006b49..872dffe33623 100644 --- a/arch/blackfin/oprofile/op_model_bf533.c +++ b/arch/blackfin/oprofile/op_model_bf533.c @@ -32,12 +32,12 @@ #include <linux/init.h> #include <linux/smp.h> #include <linux/interrupt.h> -#include <asm/ptrace.h> +#include <linux/ptrace.h> +#include <linux/irq.h> +#include <linux/io.h> #include <asm/system.h> #include <asm/processor.h> #include <asm/blackfin.h> -#include <asm/irq.h> -#include <asm/io.h> #include "op_blackfin.h" diff --git a/arch/blackfin/oprofile/timer_int.c b/arch/blackfin/oprofile/timer_int.c index 8fba16c846c9..6c6f8606af4c 100644 --- a/arch/blackfin/oprofile/timer_int.c +++ b/arch/blackfin/oprofile/timer_int.c @@ -31,8 +31,7 @@ #include <linux/smp.h> #include <linux/irq.h> #include <linux/oprofile.h> - -#include <asm/ptrace.h> +#include <linux/ptrace.h> static void enable_sys_timer0() { diff --git a/arch/i386/Kconfig.cpu b/arch/i386/Kconfig.cpu index 5c95ceb7f122..9cbe76c3aa35 100644 --- a/arch/i386/Kconfig.cpu +++ b/arch/i386/Kconfig.cpu @@ -344,8 +344,8 @@ config X86_CMOV depends on (MK7 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7) default y -config X86_MINIMUM_CPU_MODEL +config X86_MINIMUM_CPU_FAMILY int - default "4" if X86_XADD || X86_CMPXCHG || X86_BSWAP - default "0" + default "4" if X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK + default "3" diff --git a/arch/i386/boot/Makefile b/arch/i386/boot/Makefile index bfbc32098a4a..08678a0a3d19 100644 --- a/arch/i386/boot/Makefile +++ b/arch/i386/boot/Makefile @@ -25,27 +25,56 @@ SVGA_MODE := -DSVGA_MODE=NORMAL_VGA #RAMDISK := -DRAMDISK=512 -targets := vmlinux.bin bootsect bootsect.o \ - setup setup.o zImage bzImage +targets := vmlinux.bin setup.bin setup.elf zImage bzImage subdir- := compressed +setup-y += a20.o apm.o cmdline.o copy.o cpu.o cpucheck.o edd.o +setup-y += header.o main.o mca.o memory.o pm.o pmjump.o +setup-y += printf.o string.o tty.o video.o version.o voyager.o + +# The link order of the video-*.o modules can matter. In particular, +# video-vga.o *must* be listed first, followed by video-vesa.o. +# Hardware-specific drivers should follow in the order they should be +# probed, and video-bios.o should typically be last. +setup-y += video-vga.o +setup-y += video-vesa.o +setup-y += video-bios.o + hostprogs-y := tools/build HOSTCFLAGS_build.o := $(LINUXINCLUDE) # --------------------------------------------------------------------------- +# How to compile the 16-bit code. Note we always compile for -march=i386, +# that way we can complain to the user if the CPU is insufficient. +cflags-i386 := +cflags-x86_64 := -m32 +CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \ + $(cflags-$(ARCH)) \ + -Wall -Wstrict-prototypes \ + -march=i386 -mregparm=3 \ + -include $(srctree)/$(src)/code16gcc.h \ + -fno-strict-aliasing -fomit-frame-pointer \ + $(call cc-option, -ffreestanding) \ + $(call cc-option, -fno-toplevel-reorder,\ + $(call cc-option, -fno-unit-at-a-time)) \ + $(call cc-option, -fno-stack-protector) \ + $(call cc-option, -mpreferred-stack-boundary=2) +AFLAGS := $(CFLAGS) -D__ASSEMBLY__ + $(obj)/zImage: IMAGE_OFFSET := 0x1000 $(obj)/zImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) $(obj)/bzImage: IMAGE_OFFSET := 0x100000 +$(obj)/bzImage: EXTRA_CFLAGS := -D__BIG_KERNEL__ $(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ $(obj)/bzImage: BUILDFLAGS := -b quiet_cmd_image = BUILD $@ -cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \ +cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/setup.bin \ $(obj)/vmlinux.bin $(ROOT_DEV) > $@ -$(obj)/zImage $(obj)/bzImage: $(obj)/bootsect $(obj)/setup \ +$(obj)/zImage $(obj)/bzImage: $(obj)/setup.bin \ $(obj)/vmlinux.bin $(obj)/tools/build FORCE $(call if_changed,image) @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' @@ -53,12 +82,17 @@ $(obj)/zImage $(obj)/bzImage: $(obj)/bootsect $(obj)/setup \ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE $(call if_changed,objcopy) -LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary -LDFLAGS_setup := -Ttext 0x0 -s --oformat binary -e begtext +SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) -$(obj)/setup $(obj)/bootsect: %: %.o FORCE +LDFLAGS_setup.elf := -T +$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE $(call if_changed,ld) +OBJCOPYFLAGS_setup.bin := -O binary + +$(obj)/setup.bin: $(obj)/setup.elf FORCE + $(call if_changed,objcopy) + $(obj)/compressed/vmlinux: FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ diff --git a/arch/i386/boot/a20.c b/arch/i386/boot/a20.c new file mode 100644 index 000000000000..31348d054fca --- /dev/null +++ b/arch/i386/boot/a20.c @@ -0,0 +1,161 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/a20.c + * + * Enable A20 gate (return -1 on failure) + */ + +#include "boot.h" + +#define MAX_8042_LOOPS 100000 + +static int empty_8042(void) +{ + u8 status; + int loops = MAX_8042_LOOPS; + + while (loops--) { + io_delay(); + + status = inb(0x64); + if (status & 1) { + /* Read and discard input data */ + io_delay(); + (void)inb(0x60); + } else if (!(status & 2)) { + /* Buffers empty, finished! */ + return 0; + } + } + + return -1; +} + +/* Returns nonzero if the A20 line is enabled. The memory address + used as a test is the int $0x80 vector, which should be safe. */ + +#define A20_TEST_ADDR (4*0x80) +#define A20_TEST_SHORT 32 +#define A20_TEST_LONG 2097152 /* 2^21 */ + +static int a20_test(int loops) +{ + int ok = 0; + int saved, ctr; + + set_fs(0x0000); + set_gs(0xffff); + + saved = ctr = rdfs32(A20_TEST_ADDR); + + while (loops--) { + wrfs32(++ctr, A20_TEST_ADDR); + io_delay(); /* Serialize and make delay constant */ + ok = rdgs32(A20_TEST_ADDR+0x10) ^ ctr; + if (ok) + break; + } + + wrfs32(saved, A20_TEST_ADDR); + return ok; +} + +/* Quick test to see if A20 is already enabled */ +static int a20_test_short(void) +{ + return a20_test(A20_TEST_SHORT); +} + +/* Longer test that actually waits for A20 to come on line; this + is useful when dealing with the KBC or other slow external circuitry. */ +static int a20_test_long(void) +{ + return a20_test(A20_TEST_LONG); +} + +static void enable_a20_bios(void) +{ + asm volatile("pushfl; int $0x15; popfl" + : : "a" ((u16)0x2401)); +} + +static void enable_a20_kbc(void) +{ + empty_8042(); + + outb(0xd1, 0x64); /* Command write */ + empty_8042(); + + outb(0xdf, 0x60); /* A20 on */ + empty_8042(); +} + +static void enable_a20_fast(void) +{ + u8 port_a; + + port_a = inb(0x92); /* Configuration port A */ + port_a |= 0x02; /* Enable A20 */ + port_a &= ~0x01; /* Do not reset machine */ + outb(port_a, 0x92); +} + +/* + * Actual routine to enable A20; return 0 on ok, -1 on failure + */ + +#define A20_ENABLE_LOOPS 255 /* Number of times to try */ + +int enable_a20(void) +{ + int loops = A20_ENABLE_LOOPS; + +#if defined(CONFIG_X86_ELAN) + /* Elan croaks if we try to touch the KBC */ + enable_a20_fast(); + while (!a20_test_long()) + ; + return 0; +#elif defined(CONFIG_X86_VOYAGER) + /* On Voyager, a20_test() is unsafe? */ + enable_a20_kbc(); + return 0; +#else + while (loops--) { + /* First, check to see if A20 is already enabled + (legacy free, etc.) */ + if (a20_test_short()) + return 0; + + /* Next, try the BIOS (INT 0x15, AX=0x2401) */ + enable_a20_bios(); + if (a20_test_short()) + return 0; + + /* Try enabling A20 through the keyboard controller */ + empty_8042(); + if (a20_test_short()) + return 0; /* BIOS worked, but with delayed reaction */ + + enable_a20_kbc(); + if (a20_test_long()) + return 0; + + /* Finally, try enabling the "fast A20 gate" */ + enable_a20_fast(); + if (a20_test_long()) + return 0; + } + + return -1; +#endif +} diff --git a/arch/i386/boot/apm.c b/arch/i386/boot/apm.c new file mode 100644 index 000000000000..a34087c370c0 --- /dev/null +++ b/arch/i386/boot/apm.c @@ -0,0 +1,97 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * Original APM BIOS checking by Stephen Rothwell, May 1994 + * (sfr@canb.auug.org.au) + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/apm.c + * + * Get APM BIOS information + */ + +#include "boot.h" + +#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) + +int query_apm_bios(void) +{ + u16 ax, bx, cx, dx, di; + u32 ebx, esi; + u8 err; + + /* APM BIOS installation check */ + ax = 0x5300; + bx = cx = 0; + asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %0" + : "=d" (err), "+a" (ax), "+b" (bx), "+c" (cx) + : : "esi", "edi"); + + if (err) + return -1; /* No APM BIOS */ + + if (bx != 0x504d) /* "PM" signature */ + return -1; + + if (cx & 0x02) /* 32 bits supported? */ + return -1; + + /* Disconnect first, just in case */ + ax = 0x5304; + asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp" + : "+a" (ax) + : : "ebx", "ecx", "edx", "esi", "edi"); + + /* Paranoia */ + ebx = esi = 0; + cx = dx = di = 0; + + /* 32-bit connect */ + asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %6" + : "=a" (ax), "+b" (ebx), "+c" (cx), "+d" (dx), + "+S" (esi), "+D" (di), "=m" (err) + : "a" (0x5303)); + + boot_params.apm_bios_info.cseg = ax; + boot_params.apm_bios_info.offset = ebx; + boot_params.apm_bios_info.cseg_16 = cx; + boot_params.apm_bios_info.dseg = dx; + boot_params.apm_bios_info.cseg_len = (u16)esi; + boot_params.apm_bios_info.cseg_16_len = esi >> 16; + boot_params.apm_bios_info.dseg_len = di; + + if (err) + return -1; + + /* Redo the installation check as the 32-bit connect; + some BIOSes return different flags this way... */ + + ax = 0x5300; + bx = cx = 0; + asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp ; setc %0" + : "=d" (err), "+a" (ax), "+b" (bx), "+c" (cx) + : : "esi", "edi"); + + if (err || bx != 0x504d) { + /* Failure with 32-bit connect, try to disconect and ignore */ + ax = 0x5304; + bx = 0; + asm volatile("pushl %%ebp ; int $0x15 ; popl %%ebp" + : "+a" (ax), "+b" (bx) + : : "ecx", "edx", "esi", "edi"); + return -1; + } + + boot_params.apm_bios_info.version = ax; + boot_params.apm_bios_info.flags = cx; + return 0; +} + +#endif diff --git a/arch/i386/boot/bitops.h b/arch/i386/boot/bitops.h new file mode 100644 index 000000000000..8dcc8dc7db88 --- /dev/null +++ b/arch/i386/boot/bitops.h @@ -0,0 +1,45 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/bitops.h + * + * Very simple bitops for the boot code. + */ + +#ifndef BOOT_BITOPS_H +#define BOOT_BITOPS_H +#define _LINUX_BITOPS_H /* Inhibit inclusion of <linux/bitops.h> */ + +static inline int constant_test_bit(int nr, const void *addr) +{ + const u32 *p = (const u32 *)addr; + return ((1UL << (nr & 31)) & (p[nr >> 5])) != 0; +} +static inline int variable_test_bit(int nr, const void *addr) +{ + u8 v; + const u32 *p = (const u32 *)addr; + + asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); + return v; +} + +#define test_bit(nr,addr) \ +(__builtin_constant_p(nr) ? \ + constant_test_bit((nr),(addr)) : \ + variable_test_bit((nr),(addr))) + +static inline void set_bit(int nr, void *addr) +{ + asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); +} + +#endif /* BOOT_BITOPS_H */ diff --git a/arch/i386/boot/boot.h b/arch/i386/boot/boot.h new file mode 100644 index 000000000000..0329c4fe4f88 --- /dev/null +++ b/arch/i386/boot/boot.h @@ -0,0 +1,296 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/boot.h + * + * Header file for the real-mode kernel code + */ + +#ifndef BOOT_BOOT_H +#define BOOT_BOOT_H + +#ifndef __ASSEMBLY__ + +#include <stdarg.h> +#include <linux/types.h> +#include <linux/edd.h> +#include <asm/boot.h> +#include <asm/bootparam.h> + +/* Useful macros */ +#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) + +extern struct setup_header hdr; +extern struct boot_params boot_params; + +/* Basic port I/O */ +static inline void outb(u8 v, u16 port) +{ + asm volatile("outb %0,%1" : : "a" (v), "dN" (port)); +} +static inline u8 inb(u16 port) +{ + u8 v; + asm volatile("inb %1,%0" : "=a" (v) : "dN" (port)); + return v; +} + +static inline void outw(u16 v, u16 port) +{ + asm volatile("outw %0,%1" : : "a" (v), "dN" (port)); +} +static inline u16 inw(u16 port) +{ + u16 v; + asm volatile("inw %1,%0" : "=a" (v) : "dN" (port)); + return v; +} + +static inline void outl(u32 v, u16 port) +{ + asm volatile("outl %0,%1" : : "a" (v), "dn" (port)); +} +static inline u32 inl(u32 port) +{ + u32 v; + asm volatile("inl %1,%0" : "=a" (v) : "dN" (port)); + return v; +} + +static inline void io_delay(void) +{ + const u16 DELAY_PORT = 0x80; + asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT)); +} + +/* These functions are used to reference data in other segments. */ + +static inline u16 ds(void) +{ + u16 seg; + asm("movw %%ds,%0" : "=rm" (seg)); + return seg; +} + +static inline void set_fs(u16 seg) +{ + asm volatile("movw %0,%%fs" : : "rm" (seg)); +} +static inline u16 fs(void) +{ + u16 seg; + asm("movw %%fs,%0" : "=rm" (seg)); + return seg; +} + +static inline void set_gs(u16 seg) +{ + asm volatile("movw %0,%%gs" : : "rm" (seg)); +} +static inline u16 gs(void) +{ + u16 seg; + asm("movw %%gs,%0" : "=rm" (seg)); + return seg; +} + +typedef unsigned int addr_t; + +static inline u8 rdfs8(addr_t addr) +{ + u8 v; + asm("movb %%fs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr)); + return v; +} +static inline u16 rdfs16(addr_t addr) +{ + u16 v; + asm("movw %%fs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); + return v; +} +static inline u32 rdfs32(addr_t addr) +{ + u32 v; + asm("movl %%fs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); + return v; +} + +static inline void wrfs8(u8 v, addr_t addr) +{ + asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "r" (v)); +} +static inline void wrfs16(u16 v, addr_t addr) +{ + asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "r" (v)); +} +static inline void wrfs32(u32 v, addr_t addr) +{ + asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "r" (v)); +} + +static inline u8 rdgs8(addr_t addr) +{ + u8 v; + asm("movb %%gs:%1,%0" : "=r" (v) : "m" (*(u8 *)addr)); + return v; +} +static inline u16 rdgs16(addr_t addr) +{ + u16 v; + asm("movw %%gs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr)); + return v; +} +static inline u32 rdgs32(addr_t addr) +{ + u32 v; + asm("movl %%gs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr)); + return v; +} + +static inline void wrgs8(u8 v, addr_t addr) +{ + asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "r" (v)); +} +static inline void wrgs16(u16 v, addr_t addr) +{ + asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "r" (v)); +} +static inline void wrgs32(u32 v, addr_t addr) +{ + asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "r" (v)); +} + +/* Note: these only return true/false, not a signed return value! */ +static inline int memcmp(const void *s1, const void *s2, size_t len) +{ + u8 diff; + asm("repe; cmpsb; setnz %0" + : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); + return diff; +} + +static inline int memcmp_fs(const void *s1, addr_t s2, size_t len) +{ + u8 diff; + asm("fs; repe; cmpsb; setnz %0" + : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); + return diff; +} +static inline int memcmp_gs(const void *s1, addr_t s2, size_t len) +{ + u8 diff; + asm("gs; repe; cmpsb; setnz %0" + : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); + return diff; +} + +static inline int isdigit(int ch) +{ + return (ch >= '0') && (ch <= '9'); +} + +/* Heap -- available for dynamic lists. */ +#define STACK_SIZE 512 /* Minimum number of bytes for stack */ + +extern char _end[]; +extern char *HEAP; +extern char *heap_end; +#define RESET_HEAP() ((void *)( HEAP = _end )) +static inline char *__get_heap(size_t s, size_t a, size_t n) +{ + char *tmp; + + HEAP = (char *)(((size_t)HEAP+(a-1)) & ~(a-1)); + tmp = HEAP; + HEAP += s*n; + return tmp; +} +#define GET_HEAP(type, n) \ + ((type *)__get_heap(sizeof(type),__alignof__(type),(n))) + +static inline int heap_free(void) +{ + return heap_end-HEAP; +} + +/* copy.S */ + +void copy_to_fs(addr_t dst, void *src, size_t len); +void *copy_from_fs(void *dst, addr_t src, size_t len); +void copy_to_gs(addr_t dst, void *src, size_t len); +void *copy_from_gs(void *dst, addr_t src, size_t len); +void *memcpy(void *dst, void *src, size_t len); +void *memset(void *dst, int c, size_t len); + +#define memcpy(d,s,l) __builtin_memcpy(d,s,l) +#define memset(d,c,l) __builtin_memset(d,c,l) + +/* a20.c */ +int enable_a20(void); + +/* apm.c */ +int query_apm_bios(void); + +/* cmdline.c */ +int cmdline_find_option(const char *option, char *buffer, int bufsize); + +/* cpu.c, cpucheck.c */ +int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr); +int validate_cpu(void); + +/* edd.c */ +void query_edd(void); + +/* header.S */ +void __attribute__((noreturn)) die(void); + +/* mca.c */ +int query_mca(void); + +/* memory.c */ +int detect_memory(void); + +/* pm.c */ +void __attribute__((noreturn)) go_to_protected_mode(void); + +/* pmjump.S */ +void __attribute__((noreturn)) + protected_mode_jump(u32 entrypoint, u32 bootparams); + +/* printf.c */ +int sprintf(char *buf, const char *fmt, ...); +int vsprintf(char *buf, const char *fmt, va_list args); +int printf(const char *fmt, ...); + +/* string.c */ +int strcmp(const char *str1, const char *str2); +size_t strnlen(const char *s, size_t maxlen); +unsigned int atou(const char *s); + +/* tty.c */ +void puts(const char *); +void putchar(int); +int getchar(void); +void kbd_flush(void); +int getchar_timeout(void); + +/* video.c */ +void set_video(void); + +/* video-vesa.c */ +void vesa_store_edid(void); + +/* voyager.c */ +int query_voyager(void); + +#endif /* __ASSEMBLY__ */ + +#endif /* BOOT_BOOT_H */ diff --git a/arch/i386/boot/bootsect.S b/arch/i386/boot/bootsect.S deleted file mode 100644 index 011b7a4993d4..000000000000 --- a/arch/i386/boot/bootsect.S +++ /dev/null @@ -1,98 +0,0 @@ -/* - * bootsect.S Copyright (C) 1991, 1992 Linus Torvalds - * - * modified by Drew Eckhardt - * modified by Bruce Evans (bde) - * modified by Chris Noe (May 1999) (as86 -> gas) - * gutted by H. Peter Anvin (Jan 2003) - * - * BIG FAT NOTE: We're in real mode using 64k segments. Therefore segment - * addresses must be multiplied by 16 to obtain their respective linear - * addresses. To avoid confusion, linear addresses are written using leading - * hex while segment addresses are written as segment:offset. - * - */ - -#include <asm/boot.h> - -SETUPSECTS = 4 /* default nr of setup-sectors */ -BOOTSEG = 0x07C0 /* original address of boot-sector */ -INITSEG = DEF_INITSEG /* we move boot here - out of the way */ -SETUPSEG = DEF_SETUPSEG /* setup starts here */ -SYSSEG = DEF_SYSSEG /* system loaded at 0x10000 (65536) */ -SYSSIZE = DEF_SYSSIZE /* system size: # of 16-byte clicks */ - /* to be loaded */ -ROOT_DEV = 0 /* ROOT_DEV is now written by "build" */ -SWAP_DEV = 0 /* SWAP_DEV is now written by "build" */ - -#ifndef SVGA_MODE -#define SVGA_MODE ASK_VGA -#endif - -#ifndef RAMDISK -#define RAMDISK 0 -#endif - -#ifndef ROOT_RDONLY -#define ROOT_RDONLY 1 -#endif - -.code16 -.text - -.global _start -_start: - - # Normalize the start address - jmpl $BOOTSEG, $start2 - -start2: - movw %cs, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %ss - movw $0x7c00, %sp - sti - cld - - movw $bugger_off_msg, %si - -msg_loop: - lodsb - andb %al, %al - jz die - movb $0xe, %ah - movw $7, %bx - int $0x10 - jmp msg_loop - -die: - # Allow the user to press a key, then reboot - xorw %ax, %ax - int $0x16 - int $0x19 - - # int 0x19 should never return. In case it does anyway, - # invoke the BIOS reset code... - ljmp $0xf000,$0xfff0 - - -bugger_off_msg: - .ascii "Direct booting from floppy is no longer supported.\r\n" - .ascii "Please use a boot loader program instead.\r\n" - .ascii "\n" - .ascii "Remove disk and press any key to reboot . . .\r\n" - .byte 0 - - - # Kernel attributes; used by setup - - .org 497 -setup_sects: .byte SETUPSECTS -root_flags: .word ROOT_RDONLY -syssize: .word SYSSIZE -swap_dev: .word SWAP_DEV -ram_size: .word RAMDISK -vid_mode: .word SVGA_MODE -root_dev: .word ROOT_DEV -boot_flag: .word 0xAA55 diff --git a/arch/i386/boot/cmdline.c b/arch/i386/boot/cmdline.c new file mode 100644 index 000000000000..34bb778c4357 --- /dev/null +++ b/arch/i386/boot/cmdline.c @@ -0,0 +1,97 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/cmdline.c + * + * Simple command-line parser for early boot. + */ + +#include "boot.h" + +static inline int myisspace(u8 c) +{ + return c <= ' '; /* Close enough approximation */ +} + +/* + * Find a non-boolean option, that is, "option=argument". In accordance + * with standard Linux practice, if this option is repeated, this returns + * the last instance on the command line. + * + * Returns the length of the argument (regardless of if it was + * truncated to fit in the buffer), or -1 on not found. + */ +int cmdline_find_option(const char *option, char *buffer, int bufsize) +{ + u32 cmdline_ptr = boot_params.hdr.cmd_line_ptr; + addr_t cptr; + char c; + int len = -1; + const char *opptr = NULL; + char *bufptr = buffer; + enum { + st_wordstart, /* Start of word/after whitespace */ + st_wordcmp, /* Comparing this word */ + st_wordskip, /* Miscompare, skip */ + st_bufcpy /* Copying this to buffer */ + } state = st_wordstart; + + if (!cmdline_ptr || cmdline_ptr >= 0x100000) + return -1; /* No command line, or inaccessible */ + + cptr = cmdline_ptr & 0xf; + set_fs(cmdline_ptr >> 4); + + while (cptr < 0x10000 && (c = rdfs8(cptr++))) { + switch (state) { + case st_wordstart: + if (myisspace(c)) + break; + + /* else */ + state = st_wordcmp; + opptr = option; + /* fall through */ + + case st_wordcmp: + if (c == '=' && !*opptr) { + len = 0; + bufptr = buffer; + state = st_bufcpy; + } else if (myisspace(c)) { + state = st_wordstart; + } else if (c != *opptr++) { + state = st_wordskip; + } + break; + + case st_wordskip: + if (myisspace(c)) + state = st_wordstart; + break; + + case st_bufcpy: + if (myisspace(c)) { + state = st_wordstart; + } else { + if (len < bufsize-1) + *bufptr++ = c; + len++; + } + break; + } + } + + if (bufsize) + *bufptr = '\0'; + + return len; +} diff --git a/arch/i386/boot/code16gcc.h b/arch/i386/boot/code16gcc.h new file mode 100644 index 000000000000..3bd848093b9d --- /dev/null +++ b/arch/i386/boot/code16gcc.h @@ -0,0 +1,15 @@ +/* + * code16gcc.h + * + * This file is -include'd when compiling 16-bit C code. + * Note: this asm() needs to be emitted before gcc omits any code. + * Depending on gcc version, this requires -fno-unit-at-a-time or + * -fno-toplevel-reorder. + * + * Hopefully gcc will eventually have a real -m16 option so we can + * drop this hack long term. + */ + +#ifndef __ASSEMBLY__ +asm(".code16gcc"); +#endif diff --git a/arch/i386/boot/compressed/Makefile b/arch/i386/boot/compressed/Makefile index a661217f33ec..189fa1dbefcc 100644 --- a/arch/i386/boot/compressed/Makefile +++ b/arch/i386/boot/compressed/Makefile @@ -9,9 +9,14 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o \ EXTRA_AFLAGS := -traditional LDFLAGS_vmlinux := -T -CFLAGS_misc.o += -fPIC hostprogs-y := relocs +CFLAGS := -m32 -D__KERNEL__ $(LINUX_INCLUDE) -O2 \ + -fno-strict-aliasing -fPIC \ + $(call cc-option,-ffreestanding) \ + $(call cc-option,-fno-stack-protector) +LDFLAGS := -m elf_i386 + $(obj)/vmlinux: $(src)/vmlinux.lds $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE $(call if_changed,ld) @: diff --git a/arch/i386/boot/compressed/head.S b/arch/i386/boot/compressed/head.S index 3517a32aaf41..f35ea2237522 100644 --- a/arch/i386/boot/compressed/head.S +++ b/arch/i386/boot/compressed/head.S @@ -45,10 +45,10 @@ startup_32: * at and where we were actually loaded at. This can only be done * with a short local call on x86. Nothing else will tell us what * address we are running at. The reserved chunk of the real-mode - * data at 0x34-0x3f are used as the stack for this calculation. - * Only 4 bytes are needed. + * data at 0x1e4 (defined as a scratch field) are used as the stack + * for this calculation. Only 4 bytes are needed. */ - leal 0x40(%esi), %esp + leal (0x1e4+4)(%esi), %esp call 1f 1: popl %ebp subl $1b, %ebp diff --git a/arch/i386/boot/copy.S b/arch/i386/boot/copy.S new file mode 100644 index 000000000000..ef127e56a3cf --- /dev/null +++ b/arch/i386/boot/copy.S @@ -0,0 +1,101 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/copy.S + * + * Memory copy routines + */ + + .code16gcc + .text + + .globl memcpy + .type memcpy, @function +memcpy: + pushw %si + pushw %di + movw %ax, %di + movw %dx, %si + pushw %cx + shrw $2, %cx + rep; movsl + popw %cx + andw $3, %cx + rep; movsb + popw %di + popw %si + ret + .size memcpy, .-memcpy + + .globl memset + .type memset, @function +memset: + pushw %di + movw %ax, %di + movzbl %dl, %eax + imull $0x01010101,%eax + pushw %cx + shrw $2, %cx + rep; stosl + popw %cx + andw $3, %cx + rep; stosb + popw %di + ret + .size memset, .-memset + + .globl copy_from_fs + .type copy_from_fs, @function +copy_from_fs: + pushw %ds + pushw %fs + popw %ds + call memcpy + popw %ds + ret + .size copy_from_fs, .-copy_from_fs + + .globl copy_to_fs + .type copy_to_fs, @function +copy_to_fs: + pushw %es + pushw %fs + popw %es + call memcpy + popw %es + ret + .size copy_to_fs, .-copy_to_fs + +#if 0 /* Not currently used, but can be enabled as needed */ + + .globl copy_from_gs + .type copy_from_gs, @function +copy_from_gs: + pushw %ds + pushw %gs + popw %ds + call memcpy + popw %ds + ret + .size copy_from_gs, .-copy_from_gs + .globl copy_to_gs + + .type copy_to_gs, @function +copy_to_gs: + pushw %es + pushw %gs + popw %es + call memcpy + popw %es + ret + .size copy_to_gs, .-copy_to_gs + +#endif diff --git a/arch/i386/boot/cpu.c b/arch/i386/boot/cpu.c new file mode 100644 index 000000000000..2a5c32da5852 --- /dev/null +++ b/arch/i386/boot/cpu.c @@ -0,0 +1,69 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/cpu.c + * + * Check for obligatory CPU features and abort if the features are not + * present. + */ + +#include "boot.h" +#include "bitops.h" +#include <asm/cpufeature.h> + +static char *cpu_name(int level) +{ + static char buf[6]; + + if (level == 64) { + return "x86-64"; + } else { + sprintf(buf, "i%d86", level); + return buf; + } +} + +int validate_cpu(void) +{ + u32 *err_flags; + int cpu_level, req_level; + + check_cpu(&cpu_level, &req_level, &err_flags); + + if (cpu_level < req_level) { + printf("This kernel requires an %s CPU, ", + cpu_name(req_level)); + printf("but only detected an %s CPU.\n", + cpu_name(cpu_level)); + return -1; + } + + if (err_flags) { + int i, j; + puts("This kernel requires the following features " + "not present on the CPU:\n"); + + for (i = 0; i < NCAPINTS; i++) { + u32 e = err_flags[i]; + + for (j = 0; j < 32; j++) { + if (e & 1) + printf("%d:%d ", i, j); + + e >>= 1; + } + } + putchar('\n'); + return -1; + } else { + return 0; + } +} diff --git a/arch/i386/boot/cpucheck.c b/arch/i386/boot/cpucheck.c new file mode 100644 index 000000000000..8b0f4473b083 --- /dev/null +++ b/arch/i386/boot/cpucheck.c @@ -0,0 +1,267 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/cpucheck.c + * + * Check for obligatory CPU features and abort if the features are not + * present. This code should be compilable as 16-, 32- or 64-bit + * code, so be very careful with types and inline assembly. + * + * This code should not contain any messages; that requires an + * additional wrapper. + * + * As written, this code is not safe for inclusion into the kernel + * proper (after FPU initialization, in particular). + */ + +#ifdef _SETUP +# include "boot.h" +# include "bitops.h" +#endif +#include <linux/types.h> +#include <asm/cpufeature.h> +#include <asm/processor-flags.h> +#include <asm/required-features.h> +#include <asm/msr-index.h> + +struct cpu_features { + int level; /* Family, or 64 for x86-64 */ + int model; + u32 flags[NCAPINTS]; +}; + +static struct cpu_features cpu; +static u32 cpu_vendor[3]; +static u32 err_flags[NCAPINTS]; + +#ifdef CONFIG_X86_64 +static const int req_level = 64; +#elif defined(CONFIG_X86_MINIMUM_CPU_FAMILY) +static const int req_level = CONFIG_X86_MINIMUM_CPU_FAMILY; +#else +static const int req_level = 3; +#endif + +static const u32 req_flags[NCAPINTS] = +{ + REQUIRED_MASK0, + REQUIRED_MASK1, + REQUIRED_MASK2, + REQUIRED_MASK3, + REQUIRED_MASK4, + REQUIRED_MASK5, + REQUIRED_MASK6, + REQUIRED_MASK7, +}; + +#define A32(a,b,c,d) (((d) << 24)+((c) << 16)+((b) << 8)+(a)) + +static int is_amd(void) +{ + return cpu_vendor[0] == A32('A','u','t','h') && + cpu_vendor[1] == A32('e','n','t','i') && + cpu_vendor[2] == A32('c','A','M','D'); +} + +static int is_centaur(void) +{ + return cpu_vendor[0] == A32('C','e','n','t') && + cpu_vendor[1] == A32('a','u','r','H') && + cpu_vendor[2] == A32('a','u','l','s'); +} + +static int is_transmeta(void) +{ + return cpu_vendor[0] == A32('G','e','n','u') && + cpu_vendor[1] == A32('i','n','e','T') && + cpu_vendor[2] == A32('M','x','8','6'); +} + +static int has_fpu(void) +{ + u16 fcw = -1, fsw = -1; + u32 cr0; + + asm("movl %%cr0,%0" : "=r" (cr0)); + if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { + cr0 &= ~(X86_CR0_EM|X86_CR0_TS); + asm volatile("movl %0,%%cr0" : : "r" (cr0)); + } + + asm("fninit ; fnstsw %0 ; fnstcw %1" : "+m" (fsw), "+m" (fcw)); + + return fsw == 0 && (fcw & 0x103f) == 0x003f; +} + +static int has_eflag(u32 mask) +{ + u32 f0, f1; + + asm("pushfl ; " + "pushfl ; " + "popl %0 ; " + "movl %0,%1 ; " + "xorl %2,%1 ; " + "pushl %1 ; " + "popfl ; " + "pushfl ; " + "popl %1 ; " + "popfl" + : "=r" (f0), "=r" (f1) + : "g" (mask)); + + return !!((f0^f1) & mask); +} + +static void get_flags(void) +{ + u32 max_intel_level, max_amd_level; + u32 tfms; + + if (has_fpu()) + set_bit(X86_FEATURE_FPU, cpu.flags); + + if (has_eflag(X86_EFLAGS_ID)) { + asm("cpuid" + : "=a" (max_intel_level), + "=b" (cpu_vendor[0]), + "=d" (cpu_vendor[1]), + "=c" (cpu_vendor[2]) + : "a" (0)); + + if (max_intel_level >= 0x00000001 && + max_intel_level <= 0x0000ffff) { + asm("cpuid" + : "=a" (tfms), + "=c" (cpu.flags[4]), + "=d" (cpu.flags[0]) + : "a" (0x00000001) + : "ebx"); + cpu.level = (tfms >> 8) & 15; + cpu.model = (tfms >> 4) & 15; + if (cpu.level >= 6) + cpu.model += ((tfms >> 16) & 0xf) << 4; + } + + asm("cpuid" + : "=a" (max_amd_level) + : "a" (0x80000000) + : "ebx", "ecx", "edx"); + + if (max_amd_level >= 0x80000001 && + max_amd_level <= 0x8000ffff) { + u32 eax = 0x80000001; + asm("cpuid" + : "+a" (eax), + "=c" (cpu.flags[6]), + "=d" (cpu.flags[1]) + : : "ebx"); + } + } +} + +/* Returns a bitmask of which words we have error bits in */ +static int check_flags(void) +{ + u32 err; + int i; + + err = 0; + for (i = 0; i < NCAPINTS; i++) { + err_flags[i] = req_flags[i] & ~cpu.flags[i]; + if (err_flags[i]) + err |= 1 << i; + } + + return err; +} + +/* + * Returns -1 on error. + * + * *cpu_level is set to the current CPU level; *req_level to the required + * level. x86-64 is considered level 64 for this purpose. + * + * *err_flags_ptr is set to the flags error array if there are flags missing. + */ +int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr) +{ + int err; + + memset(&cpu.flags, 0, sizeof cpu.flags); + cpu.level = 3; + + if (has_eflag(X86_EFLAGS_AC)) + cpu.level = 4; + + get_flags(); + err = check_flags(); + + if (test_bit(X86_FEATURE_LM, cpu.flags)) + cpu.level = 64; + + if (err == 0x01 && + !(err_flags[0] & + ~((1 << X86_FEATURE_XMM)|(1 << X86_FEATURE_XMM2))) && + is_amd()) { + /* If this is an AMD and we're only missing SSE+SSE2, try to + turn them on */ + + u32 ecx = MSR_K7_HWCR; + u32 eax, edx; + + asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); + eax &= ~(1 << 15); + asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + get_flags(); /* Make sure it really did something */ + err = check_flags(); + } else if (err == 0x01 && + !(err_flags[0] & ~(1 << X86_FEATURE_CX8)) && + is_centaur() && cpu.model >= 6) { + /* If this is a VIA C3, we might have to enable CX8 + explicitly */ + + u32 ecx = MSR_VIA_FCR; + u32 eax, edx; + + asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); + eax |= (1<<1)|(1<<7); + asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + set_bit(X86_FEATURE_CX8, cpu.flags); + err = check_flags(); + } else if (err == 0x01 && is_transmeta()) { + /* Transmeta might have masked feature bits in word 0 */ + + u32 ecx = 0x80860004; + u32 eax, edx; + u32 level = 1; + + asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); + asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); + asm("cpuid" + : "+a" (level), "=d" (cpu.flags[0]) + : : "ecx", "ebx"); + asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); + + err = check_flags(); + } + + if (err_flags_ptr) + *err_flags_ptr = err ? err_flags : NULL; + if (cpu_level_ptr) + *cpu_level_ptr = cpu.level; + if (req_level_ptr) + *req_level_ptr = req_level; + + return (cpu.level < req_level || err) ? -1 : 0; +} diff --git a/arch/i386/boot/edd.S b/arch/i386/boot/edd.S deleted file mode 100644 index 34321368011a..000000000000 --- a/arch/i386/boot/edd.S +++ /dev/null @@ -1,231 +0,0 @@ -/* - * BIOS Enhanced Disk Drive support - * Copyright (C) 2002, 2003, 2004 Dell, Inc. - * by Matt Domsch <Matt_Domsch@dell.com> October 2002 - * conformant to T13 Committee www.t13.org - * projects 1572D, 1484D, 1386D, 1226DT - * disk signature read by Matt Domsch <Matt_Domsch@dell.com> - * and Andrew Wilks <Andrew_Wilks@dell.com> September 2003, June 2004 - * legacy CHS retrieval by Patrick J. LoPresti <patl@users.sourceforge.net> - * March 2004 - * Command line option parsing, Matt Domsch, November 2004 - */ - -#include <linux/edd.h> -#include <asm/setup.h> - -#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) - -# It is assumed that %ds == INITSEG here - - movb $0, (EDD_MBR_SIG_NR_BUF) - movb $0, (EDDNR) - -# Check the command line for options: -# edd=of disables EDD completely (edd=off) -# edd=sk skips the MBR test (edd=skipmbr) -# edd=on re-enables EDD (edd=on) - - pushl %esi - movw $edd_mbr_sig_start, %di # Default to edd=on - - movl %cs:(cmd_line_ptr), %esi - andl %esi, %esi - jz old_cl # Old boot protocol? - -# Convert to a real-mode pointer in fs:si - movl %esi, %eax - shrl $4, %eax - movw %ax, %fs - andw $0xf, %si - jmp have_cl_pointer - -# Old-style boot protocol? -old_cl: - push %ds # aka INITSEG - pop %fs - - cmpw $0xa33f, (0x20) - jne done_cl # No command line at all? - movw (0x22), %si # Pointer relative to INITSEG - -# fs:si has the pointer to the command line now -have_cl_pointer: - -# Loop through kernel command line one byte at a time. Just in -# case the loader is buggy and failed to null-terminate the command line -# terminate if we get close enough to the end of the segment that we -# cannot fit "edd=XX"... -cl_atspace: - cmpw $-5, %si # Watch for segment wraparound - jae done_cl - movl %fs:(%si), %eax - andb %al, %al # End of line? - jz done_cl - cmpl $EDD_CL_EQUALS, %eax - jz found_edd_equals - cmpb $0x20, %al # <= space consider whitespace - ja cl_skipword - incw %si - jmp cl_atspace - -cl_skipword: - cmpw $-5, %si # Watch for segment wraparound - jae done_cl - movb %fs:(%si), %al # End of string? - andb %al, %al - jz done_cl - cmpb $0x20, %al - jbe cl_atspace - incw %si - jmp cl_skipword - -found_edd_equals: -# only looking at first two characters after equals -# late overrides early on the command line, so keep going after finding something - movw %fs:4(%si), %ax - cmpw $EDD_CL_OFF, %ax # edd=of - je do_edd_off - cmpw $EDD_CL_SKIP, %ax # edd=sk - je do_edd_skipmbr - cmpw $EDD_CL_ON, %ax # edd=on - je do_edd_on - jmp cl_skipword -do_edd_skipmbr: - movw $edd_start, %di - jmp cl_skipword -do_edd_off: - movw $edd_done, %di - jmp cl_skipword -do_edd_on: - movw $edd_mbr_sig_start, %di - jmp cl_skipword - -done_cl: - popl %esi - jmpw *%di - -# Read the first sector of each BIOS disk device and store the 4-byte signature -edd_mbr_sig_start: - movb $0x80, %dl # from device 80 - movw $EDD_MBR_SIG_BUF, %bx # store buffer ptr in bx -edd_mbr_sig_read: - movl $0xFFFFFFFF, %eax - movl %eax, (%bx) # assume failure - pushw %bx - movb $READ_SECTORS, %ah - movb $1, %al # read 1 sector - movb $0, %dh # at head 0 - movw $1, %cx # cylinder 0, sector 0 - pushw %es - pushw %ds - popw %es - movw $EDDBUF, %bx # disk's data goes into EDDBUF - pushw %dx # work around buggy BIOSes - stc # work around buggy BIOSes - int $0x13 - sti # work around buggy BIOSes - popw %dx - popw %es - popw %bx - jc edd_mbr_sig_done # on failure, we're done. - cmpb $0, %ah # some BIOSes do not set CF - jne edd_mbr_sig_done # on failure, we're done. - movl (EDDBUF+EDD_MBR_SIG_OFFSET), %eax # read sig out of the MBR - movl %eax, (%bx) # store success - incb (EDD_MBR_SIG_NR_BUF) # note that we stored something - incb %dl # increment to next device - addw $4, %bx # increment sig buffer ptr - cmpb $EDD_MBR_SIG_MAX, (EDD_MBR_SIG_NR_BUF) # Out of space? - jb edd_mbr_sig_read # keep looping -edd_mbr_sig_done: - -# Do the BIOS Enhanced Disk Drive calls -# This consists of two calls: -# int 13h ah=41h "Check Extensions Present" -# int 13h ah=48h "Get Device Parameters" -# int 13h ah=08h "Legacy Get Device Parameters" -# -# A buffer of size EDDMAXNR*(EDDEXTSIZE+EDDPARMSIZE) is reserved for our use -# in the boot_params at EDDBUF. The first four bytes of which are -# used to store the device number, interface support map and version -# results from fn41. The next four bytes are used to store the legacy -# cylinders, heads, and sectors from fn08. The following 74 bytes are used to -# store the results from fn48. Starting from device 80h, fn41, then fn48 -# are called and their results stored in EDDBUF+n*(EDDEXTSIZE+EDDPARMIZE). -# Then the pointer is incremented to store the data for the next call. -# This repeats until either a device doesn't exist, or until EDDMAXNR -# devices have been stored. -# The one tricky part is that ds:si always points EDDEXTSIZE bytes into -# the structure, and the fn41 and fn08 results are stored at offsets -# from there. This removes the need to increment the pointer for -# every store, and leaves it ready for the fn48 call. -# A second one-byte buffer, EDDNR, in the boot_params stores -# the number of BIOS devices which exist, up to EDDMAXNR. -# In setup.c, copy_edd() stores both boot_params buffers away -# for later use, as they would get overwritten otherwise. -# This code is sensitive to the size of the structs in edd.h -edd_start: - # %ds points to the bootsector - # result buffer for fn48 - movw $EDDBUF+EDDEXTSIZE, %si # in ds:si, fn41 results - # kept just before that - movb $0x80, %dl # BIOS device 0x80 - -edd_check_ext: - movb $CHECKEXTENSIONSPRESENT, %ah # Function 41 - movw $EDDMAGIC1, %bx # magic - int $0x13 # make the call - jc edd_done # no more BIOS devices - - cmpw $EDDMAGIC2, %bx # is magic right? - jne edd_next # nope, next... - - movb %dl, %ds:-8(%si) # store device number - movb %ah, %ds:-7(%si) # store version - movw %cx, %ds:-6(%si) # store extensions - incb (EDDNR) # note that we stored something - -edd_get_device_params: - movw $EDDPARMSIZE, %ds:(%si) # put size - movw $0x0, %ds:2(%si) # work around buggy BIOSes - movb $GETDEVICEPARAMETERS, %ah # Function 48 - int $0x13 # make the call - # Don't check for fail return - # it doesn't matter. -edd_get_legacy_chs: - xorw %ax, %ax - movw %ax, %ds:-4(%si) - movw %ax, %ds:-2(%si) - # Ralf Brown's Interrupt List says to set ES:DI to - # 0000h:0000h "to guard against BIOS bugs" - pushw %es - movw %ax, %es - movw %ax, %di - pushw %dx # legacy call clobbers %dl - movb $LEGACYGETDEVICEPARAMETERS, %ah # Function 08 - int $0x13 # make the call - jc edd_legacy_done # failed - movb %cl, %al # Low 6 bits are max - andb $0x3F, %al # sector number - movb %al, %ds:-1(%si) # Record max sect - movb %dh, %ds:-2(%si) # Record max head number - movb %ch, %al # Low 8 bits of max cyl - shr $6, %cl - movb %cl, %ah # High 2 bits of max cyl - movw %ax, %ds:-4(%si) - -edd_legacy_done: - popw %dx - popw %es - movw %si, %ax # increment si - addw $EDDPARMSIZE+EDDEXTSIZE, %ax - movw %ax, %si - -edd_next: - incb %dl # increment to next device - cmpb $EDDMAXNR, (EDDNR) # Out of space? - jb edd_check_ext # keep looping - -edd_done: -#endif diff --git a/arch/i386/boot/edd.c b/arch/i386/boot/edd.c new file mode 100644 index 000000000000..25a282494f4c --- /dev/null +++ b/arch/i386/boot/edd.c @@ -0,0 +1,196 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/edd.c + * + * Get EDD BIOS disk information + */ + +#include "boot.h" +#include <linux/edd.h> + +#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) + +struct edd_dapa { + u8 pkt_size; + u8 rsvd; + u16 sector_cnt; + u16 buf_off, buf_seg; + u64 lba; + u64 buf_lin_addr; +}; + +/* + * Read the MBR (first sector) from a specific device. + */ +static int read_mbr(u8 devno, void *buf) +{ + struct edd_dapa dapa; + u16 ax, bx, cx, dx, si; + + memset(&dapa, 0, sizeof dapa); + dapa.pkt_size = sizeof(dapa); + dapa.sector_cnt = 1; + dapa.buf_off = (size_t)buf; + dapa.buf_seg = ds(); + /* dapa.lba = 0; */ + + ax = 0x4200; /* Extended Read */ + si = (size_t)&dapa; + dx = devno; + asm("pushfl; stc; int $0x13; setc %%al; popfl" + : "+a" (ax), "+S" (si), "+d" (dx) + : "m" (dapa) + : "ebx", "ecx", "edi", "memory"); + + if (!(u8)ax) + return 0; /* OK */ + + ax = 0x0201; /* Legacy Read, one sector */ + cx = 0x0001; /* Sector 0-0-1 */ + dx = devno; + bx = (size_t)buf; + asm("pushfl; stc; int $0x13; setc %%al; popfl" + : "+a" (ax), "+c" (cx), "+d" (dx), "+b" (bx) + : : "esi", "edi", "memory"); + + return -(u8)ax; /* 0 or -1 */ +} + +static u32 read_mbr_sig(u8 devno, struct edd_info *ei) +{ + int sector_size; + char *mbrbuf_ptr, *mbrbuf_end; + u32 mbrsig; + u32 buf_base, mbr_base; + extern char _end[]; + static char mbr_buf[1024]; + + sector_size = ei->params.bytes_per_sector; + if (!sector_size) + sector_size = 512; /* Best available guess */ + + buf_base = (ds() << 4) + (u32)&_end; + mbr_base = (buf_base+sector_size-1) & ~(sector_size-1); + mbrbuf_ptr = mbr_buf + (mbr_base-buf_base); + mbrbuf_end = mbrbuf_ptr + sector_size; + + if (!(boot_params.hdr.loadflags & CAN_USE_HEAP)) + return 0; + if (mbrbuf_end > (char *)(size_t)boot_params.hdr.heap_end_ptr) + return 0; + + if (read_mbr(devno, mbrbuf_ptr)) + return 0; + + mbrsig = *(u32 *)&mbrbuf_ptr[EDD_MBR_SIG_OFFSET]; + return mbrsig; +} + +static int get_edd_info(u8 devno, struct edd_info *ei) +{ + u16 ax, bx, cx, dx, di; + + memset(ei, 0, sizeof *ei); + + /* Check Extensions Present */ + + ax = 0x4100; + bx = EDDMAGIC1; + dx = devno; + asm("pushfl; stc; int $0x13; setc %%al; popfl" + : "+a" (ax), "+b" (bx), "=c" (cx), "+d" (dx) + : : "esi", "edi"); + + if ((u8)ax) + return -1; /* No extended information */ + + if (bx != EDDMAGIC2) + return -1; + + ei->device = devno; + ei->version = ax >> 8; /* EDD version number */ + ei->interface_support = cx; /* EDD functionality subsets */ + + /* Extended Get Device Parameters */ + + ei->params.length = sizeof(ei->params); + ax = 0x4800; + dx = devno; + asm("pushfl; int $0x13; popfl" + : "+a" (ax), "+d" (dx) + : "S" (&ei->params) + : "ebx", "ecx", "edi"); + + /* Get legacy CHS parameters */ + + /* Ralf Brown recommends setting ES:DI to 0:0 */ + ax = 0x0800; + dx = devno; + di = 0; + asm("pushw %%es; " + "movw %%di,%%es; " + "pushfl; stc; int $0x13; setc %%al; popfl; " + "popw %%es" + : "+a" (ax), "=b" (bx), "=c" (cx), "+d" (dx), "+D" (di) + : : "esi"); + + if ((u8)ax == 0) { + ei->legacy_max_cylinder = (cx >> 8) + ((cx & 0xc0) << 2); + ei->legacy_max_head = dx >> 8; + ei->legacy_sectors_per_track = cx & 0x3f; + } + + return 0; +} + +void query_edd(void) +{ + char eddarg[8]; + int do_mbr = 1; + int do_edd = 1; + int devno; + struct edd_info ei, *edp; + + if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) { + if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) + do_mbr = 0; + else if (!strcmp(eddarg, "off")) + do_edd = 0; + } + + edp = (struct edd_info *)boot_params.eddbuf; + + if (!do_edd) + return; + + for (devno = 0x80; devno < 0x80+EDD_MBR_SIG_MAX; devno++) { + /* + * Scan the BIOS-supported hard disks and query EDD + * information... + */ + get_edd_info(devno, &ei); + + if (boot_params.eddbuf_entries < EDDMAXNR) { + memcpy(edp, &ei, sizeof ei); + edp++; + boot_params.eddbuf_entries++; + } + + if (do_mbr) { + u32 mbr_sig; + mbr_sig = read_mbr_sig(devno, &ei); + boot_params.edd_mbr_sig_buffer[devno-0x80] = mbr_sig; + } + } +} + +#endif diff --git a/arch/i386/boot/header.S b/arch/i386/boot/header.S new file mode 100644 index 000000000000..6b9923fb6eae --- /dev/null +++ b/arch/i386/boot/header.S @@ -0,0 +1,283 @@ +/* + * header.S + * + * Copyright (C) 1991, 1992 Linus Torvalds + * + * Based on bootsect.S and setup.S + * modified by more people than can be counted + * + * Rewritten as a common file by H. Peter Anvin (Apr 2007) + * + * BIG FAT NOTE: We're in real mode using 64k segments. Therefore segment + * addresses must be multiplied by 16 to obtain their respective linear + * addresses. To avoid confusion, linear addresses are written using leading + * hex while segment addresses are written as segment:offset. + * + */ + +#include <asm/segment.h> +#include <linux/utsrelease.h> +#include <asm/boot.h> +#include <asm/e820.h> +#include <asm/page.h> +#include <asm/setup.h> +#include "boot.h" + +SETUPSECTS = 4 /* default nr of setup-sectors */ +BOOTSEG = 0x07C0 /* original address of boot-sector */ +SYSSEG = DEF_SYSSEG /* system loaded at 0x10000 (65536) */ +SYSSIZE = DEF_SYSSIZE /* system size: # of 16-byte clicks */ + /* to be loaded */ +ROOT_DEV = 0 /* ROOT_DEV is now written by "build" */ +SWAP_DEV = 0 /* SWAP_DEV is now written by "build" */ + +#ifndef SVGA_MODE +#define SVGA_MODE ASK_VGA +#endif + +#ifndef RAMDISK +#define RAMDISK 0 +#endif + +#ifndef ROOT_RDONLY +#define ROOT_RDONLY 1 +#endif + + .code16 + .section ".bstext", "ax" + + .global bootsect_start +bootsect_start: + + # Normalize the start address + ljmp $BOOTSEG, $start2 + +start2: + movw %cs, %ax + movw %ax, %ds + movw %ax, %es + movw %ax, %ss + xorw %sp, %sp + sti + cld + + movw $bugger_off_msg, %si + +msg_loop: + lodsb + andb %al, %al + jz bs_die + movb $0xe, %ah + movw $7, %bx + int $0x10 + jmp msg_loop + +bs_die: + # Allow the user to press a key, then reboot + xorw %ax, %ax + int $0x16 + int $0x19 + + # int 0x19 should never return. In case it does anyway, + # invoke the BIOS reset code... + ljmp $0xf000,$0xfff0 + + .section ".bsdata", "a" +bugger_off_msg: + .ascii "Direct booting from floppy is no longer supported.\r\n" + .ascii "Please use a boot loader program instead.\r\n" + .ascii "\n" + .ascii "Remove disk and press any key to reboot . . .\r\n" + .byte 0 + + + # Kernel attributes; used by setup. This is part 1 of the + # header, from the old boot sector. + + .section ".header", "a" + .globl hdr +hdr: +setup_sects: .byte SETUPSECTS +root_flags: .word ROOT_RDONLY +syssize: .long SYSSIZE +ram_size: .word RAMDISK +vid_mode: .word SVGA_MODE +root_dev: .word ROOT_DEV +boot_flag: .word 0xAA55 + + # offset 512, entry point + + .globl _start +_start: + # Explicitly enter this as bytes, or the assembler + # tries to generate a 3-byte jump here, which causes + # everything else to push off to the wrong offset. + .byte 0xeb # short (2-byte) jump + .byte start_of_setup-1f +1: + + # Part 2 of the header, from the old setup.S + + .ascii "HdrS" # header signature + .word 0x0206 # header version number (>= 0x0105) + # or else old loadlin-1.5 will fail) + .globl realmode_swtch +realmode_swtch: .word 0, 0 # default_switch, SETUPSEG +start_sys_seg: .word SYSSEG + .word kernel_version-512 # pointing to kernel version string + # above section of header is compatible + # with loadlin-1.5 (header v1.5). Don't + # change it. + +type_of_loader: .byte 0 # = 0, old one (LILO, Loadlin, + # Bootlin, SYSLX, bootsect...) + # See Documentation/i386/boot.txt for + # assigned ids + +# flags, unused bits must be zero (RFU) bit within loadflags +loadflags: +LOADED_HIGH = 1 # If set, the kernel is loaded high +CAN_USE_HEAP = 0x80 # If set, the loader also has set + # heap_end_ptr to tell how much + # space behind setup.S can be used for + # heap purposes. + # Only the loader knows what is free +#ifndef __BIG_KERNEL__ + .byte 0 +#else + .byte LOADED_HIGH +#endif + +setup_move_size: .word 0x8000 # size to move, when setup is not + # loaded at 0x90000. We will move setup + # to 0x90000 then just before jumping + # into the kernel. However, only the + # loader knows how much data behind + # us also needs to be loaded. + +code32_start: # here loaders can put a different + # start address for 32-bit code. +#ifndef __BIG_KERNEL__ + .long 0x1000 # 0x1000 = default for zImage +#else + .long 0x100000 # 0x100000 = default for big kernel +#endif + +ramdisk_image: .long 0 # address of loaded ramdisk image + # Here the loader puts the 32-bit + # address where it loaded the image. + # This only will be read by the kernel. + +ramdisk_size: .long 0 # its size in bytes + +bootsect_kludge: + .long 0 # obsolete + +heap_end_ptr: .word _end+1024 # (Header version 0x0201 or later) + # space from here (exclusive) down to + # end of setup code can be used by setup + # for local heap purposes. + +pad1: .word 0 +cmd_line_ptr: .long 0 # (Header version 0x0202 or later) + # If nonzero, a 32-bit pointer + # to the kernel command line. + # The command line should be + # located between the start of + # setup and the end of low + # memory (0xa0000), or it may + # get overwritten before it + # gets read. If this field is + # used, there is no longer + # anything magical about the + # 0x90000 segment; the setup + # can be located anywhere in + # low memory 0x10000 or higher. + +ramdisk_max: .long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff + # (Header version 0x0203 or later) + # The highest safe address for + # the contents of an initrd + +kernel_alignment: .long CONFIG_PHYSICAL_ALIGN #physical addr alignment + #required for protected mode + #kernel +#ifdef CONFIG_RELOCATABLE +relocatable_kernel: .byte 1 +#else +relocatable_kernel: .byte 0 +#endif +pad2: .byte 0 +pad3: .word 0 + +cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, + #added with boot protocol + #version 2.06 + +# End of setup header ##################################################### + + .section ".inittext", "ax" +start_of_setup: +#ifdef SAFE_RESET_DISK_CONTROLLER +# Reset the disk controller. + movw $0x0000, %ax # Reset disk controller + movb $0x80, %dl # All disks + int $0x13 +#endif + +# We will have entired with %cs = %ds+0x20, normalize %cs so +# it is on par with the other segments. + pushw %ds + pushw $setup2 + lretw + +setup2: +# Force %es = %ds + movw %ds, %ax + movw %ax, %es + cld + +# Stack paranoia: align the stack and make sure it is good +# for both 16- and 32-bit references. In particular, if we +# were meant to have been using the full 16-bit segment, the +# caller might have set %sp to zero, which breaks %esp-based +# references. + andw $~3, %sp # dword align (might as well...) + jnz 1f + movw $0xfffc, %sp # Make sure we're not zero +1: movzwl %sp, %esp # Clear upper half of %esp + sti + +# Check signature at end of setup + cmpl $0x5a5aaa55, setup_sig + jne setup_bad + +# Zero the bss + movw $__bss_start, %di + movw $_end+3, %cx + xorl %eax, %eax + subw %di, %cx + shrw $2, %cx + rep; stosl + +# Jump to C code (should not return) + calll main + +# Setup corrupt somehow... +setup_bad: + movl $setup_corrupt, %eax + calll puts + # Fall through... + + .globl die + .type die, @function +die: + hlt + jmp die + + .size die, .-due + + .section ".initdata", "a" +setup_corrupt: + .byte 7 + .string "No setup signature found..." diff --git a/arch/i386/boot/main.c b/arch/i386/boot/main.c new file mode 100644 index 000000000000..7f01f96c4fb8 --- /dev/null +++ b/arch/i386/boot/main.c @@ -0,0 +1,161 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/main.c + * + * Main module for the real-mode kernel code + */ + +#include "boot.h" + +struct boot_params boot_params __attribute__((aligned(16))); + +char *HEAP = _end; +char *heap_end = _end; /* Default end of heap = no heap */ + +/* + * Copy the header into the boot parameter block. Since this + * screws up the old-style command line protocol, adjust by + * filling in the new-style command line pointer instead. + */ +#define OLD_CL_MAGIC 0xA33F +#define OLD_CL_ADDRESS 0x20 + +static void copy_boot_params(void) +{ + struct old_cmdline { + u16 cl_magic; + u16 cl_offset; + }; + const struct old_cmdline * const oldcmd = + (const struct old_cmdline *)OLD_CL_ADDRESS; + + BUILD_BUG_ON(sizeof boot_params != 4096); + memcpy(&boot_params.hdr, &hdr, sizeof hdr); + + if (!boot_params.hdr.cmd_line_ptr && + oldcmd->cl_magic == OLD_CL_MAGIC) { + /* Old-style command line protocol. */ + u16 cmdline_seg; + + /* Figure out if the command line falls in the region + of memory that an old kernel would have copied up + to 0x90000... */ + if (oldcmd->cl_offset < boot_params.hdr.setup_move_size) + cmdline_seg = ds(); + else + cmdline_seg = 0x9000; + + boot_params.hdr.cmd_line_ptr = + (cmdline_seg << 4) + oldcmd->cl_offset; + } +} + +/* + * Set the keyboard repeat rate to maximum. Unclear why this + * is done here; this might be possible to kill off as stale code. + */ +static void keyboard_set_repeat(void) +{ + u16 ax = 0x0305; + u16 bx = 0; + asm volatile("int $0x16" + : "+a" (ax), "+b" (bx) + : : "ecx", "edx", "esi", "edi"); +} + +/* + * Get Intel SpeedStep IST information. + */ +static void query_speedstep_ist(void) +{ + asm("int $0x15" + : "=a" (boot_params.speedstep_info[0]), + "=b" (boot_params.speedstep_info[1]), + "=c" (boot_params.speedstep_info[2]), + "=d" (boot_params.speedstep_info[3]) + : "a" (0x0000e980), /* IST Support */ + "d" (0x47534943)); /* Request value */ +} + +/* + * Tell the BIOS what CPU mode we intend to run in. + */ +static void set_bios_mode(void) +{ +#ifdef CONFIG_X86_64 + u32 eax, ebx; + + eax = 0xec00; + ebx = 2; + asm volatile("int $0x15" + : "+a" (eax), "+b" (ebx) + : : "ecx", "edx", "esi", "edi"); +#endif +} + +void main(void) +{ + /* First, copy the boot header into the "zeropage" */ + copy_boot_params(); + + /* End of heap check */ + if (boot_params.hdr.loadflags & CAN_USE_HEAP) { + heap_end = (char *)(boot_params.hdr.heap_end_ptr + +0x200-STACK_SIZE); + } else { + /* Boot protocol 2.00 only, no heap available */ + puts("WARNING: Ancient bootloader, some functionality " + "may be limited!\n"); + } + + /* Make sure we have all the proper CPU support */ + if (validate_cpu()) { + puts("Unable to boot - please use a kernel appropriate " + "for your CPU.\n"); + die(); + } + + /* Tell the BIOS what CPU mode we intend to run in. */ + set_bios_mode(); + + /* Detect memory layout */ + detect_memory(); + + /* Set keyboard repeat rate (why?) */ + keyboard_set_repeat(); + + /* Set the video mode */ + set_video(); + + /* Query MCA information */ + query_mca(); + + /* Voyager */ +#ifdef CONFIG_X86_VOYAGER + query_voyager(); +#endif + + /* Query SpeedStep IST information */ + query_speedstep_ist(); + + /* Query APM information */ +#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) + query_apm_bios(); +#endif + + /* Query EDD information */ +#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) + query_edd(); +#endif + /* Do the last things and invoke protected mode */ + go_to_protected_mode(); +} diff --git a/arch/i386/boot/mca.c b/arch/i386/boot/mca.c new file mode 100644 index 000000000000..9b68bd1aef19 --- /dev/null +++ b/arch/i386/boot/mca.c @@ -0,0 +1,43 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/mca.c + * + * Get the MCA system description table + */ + +#include "boot.h" + +int query_mca(void) +{ + u8 err; + u16 es, bx, len; + + asm("pushw %%es ; " + "int $0x15 ; " + "setc %0 ; " + "movw %%es, %1 ; " + "popw %%es" + : "=acdSDm" (err), "=acdSDm" (es), "=b" (bx) + : "a" (0xc000)); + + if (err) + return -1; /* No MCA present */ + + set_fs(es); + len = rdfs16(bx); + + if (len > sizeof(boot_params.sys_desc_table)) + len = sizeof(boot_params.sys_desc_table); + + copy_from_fs(&boot_params.sys_desc_table, bx, len); + return 0; +} diff --git a/arch/i386/boot/memory.c b/arch/i386/boot/memory.c new file mode 100644 index 000000000000..1a2e62db8bed --- /dev/null +++ b/arch/i386/boot/memory.c @@ -0,0 +1,99 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/memory.c + * + * Memory detection code + */ + +#include "boot.h" + +#define SMAP 0x534d4150 /* ASCII "SMAP" */ + +static int detect_memory_e820(void) +{ + u32 next = 0; + u32 size, id; + u8 err; + struct e820entry *desc = boot_params.e820_map; + + do { + size = sizeof(struct e820entry); + id = SMAP; + asm("int $0x15; setc %0" + : "=am" (err), "+b" (next), "+d" (id), "+c" (size), + "=m" (*desc) + : "D" (desc), "a" (0xe820)); + + if (err || id != SMAP) + break; + + boot_params.e820_entries++; + desc++; + } while (next && boot_params.e820_entries < E820MAX); + + return boot_params.e820_entries; +} + +static int detect_memory_e801(void) +{ + u16 ax, bx, cx, dx; + u8 err; + + bx = cx = dx = 0; + ax = 0xe801; + asm("stc; int $0x15; setc %0" + : "=m" (err), "+a" (ax), "+b" (bx), "+c" (cx), "+d" (dx)); + + if (err) + return -1; + + /* Do we really need to do this? */ + if (cx || dx) { + ax = cx; + bx = dx; + } + + if (ax > 15*1024) + return -1; /* Bogus! */ + + /* This ignores memory above 16MB if we have a memory hole + there. If someone actually finds a machine with a memory + hole at 16MB and no support for 0E820h they should probably + generate a fake e820 map. */ + boot_params.alt_mem_k = (ax == 15*1024) ? (dx << 6)+ax : ax; + + return 0; +} + +static int detect_memory_88(void) +{ + u16 ax; + u8 err; + + ax = 0x8800; + asm("stc; int $0x15; setc %0" : "=bcdm" (err), "+a" (ax)); + + boot_params.screen_info.ext_mem_k = ax; + + return -err; +} + +int detect_memory(void) +{ + if (detect_memory_e820() > 0) + return 0; + + if (!detect_memory_e801()) + return 0; + + return detect_memory_88(); +} diff --git a/arch/i386/boot/pm.c b/arch/i386/boot/pm.c new file mode 100644 index 000000000000..3fa53e15ed77 --- /dev/null +++ b/arch/i386/boot/pm.c @@ -0,0 +1,170 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/pm.c + * + * Prepare the machine for transition to protected mode. + */ + +#include "boot.h" +#include <asm/segment.h> + +/* + * Invoke the realmode switch hook if present; otherwise + * disable all interrupts. + */ +static void realmode_switch_hook(void) +{ + if (boot_params.hdr.realmode_swtch) { + asm volatile("lcallw *%0" + : : "m" (boot_params.hdr.realmode_swtch) + : "eax", "ebx", "ecx", "edx"); + } else { + asm volatile("cli"); + outb(0x80, 0x70); /* Disable NMI */ + io_delay(); + } +} + +/* + * A zImage kernel is loaded at 0x10000 but wants to run at 0x1000. + * A bzImage kernel is loaded and runs at 0x100000. + */ +static void move_kernel_around(void) +{ + /* Note: rely on the compile-time option here rather than + the LOADED_HIGH flag. The Qemu kernel loader unconditionally + sets the loadflags to zero. */ +#ifndef __BIG_KERNEL__ + u16 dst_seg, src_seg; + u32 syssize; + + dst_seg = 0x1000 >> 4; + src_seg = 0x10000 >> 4; + syssize = boot_params.hdr.syssize; /* Size in 16-byte paragraphs */ + + while (syssize) { + int paras = (syssize >= 0x1000) ? 0x1000 : syssize; + int dwords = paras << 2; + + asm volatile("pushw %%es ; " + "pushw %%ds ; " + "movw %1,%%es ; " + "movw %2,%%ds ; " + "xorw %%di,%%di ; " + "xorw %%si,%%si ; " + "rep;movsl ; " + "popw %%ds ; " + "popw %%es" + : "+c" (dwords) + : "rm" (dst_seg), "rm" (src_seg) + : "esi", "edi"); + + syssize -= paras; + dst_seg += paras; + src_seg += paras; + } +#endif +} + +/* + * Disable all interrupts at the legacy PIC. + */ +static void mask_all_interrupts(void) +{ + outb(0xff, 0xa1); /* Mask all interrupts on the seconday PIC */ + io_delay(); + outb(0xfb, 0x21); /* Mask all but cascade on the primary PIC */ + io_delay(); +} + +/* + * Reset IGNNE# if asserted in the FPU. + */ +static void reset_coprocessor(void) +{ + outb(0, 0xf0); + io_delay(); + outb(0, 0xf1); + io_delay(); +} + +/* + * Set up the GDT + */ +#define GDT_ENTRY(flags,base,limit) \ + (((u64)(base & 0xff000000) << 32) | \ + ((u64)flags << 40) | \ + ((u64)(limit & 0x00ff0000) << 32) | \ + ((u64)(base & 0x00ffff00) << 16) | \ + ((u64)(limit & 0x0000ffff))) + +struct gdt_ptr { + u16 len; + u32 ptr; +} __attribute__((packed)); + +static void setup_gdt(void) +{ + /* There are machines which are known to not boot with the GDT + being 8-byte unaligned. Intel recommends 16 byte alignment. */ + static const u64 boot_gdt[] __attribute__((aligned(16))) = { + /* CS: code, read/execute, 4 GB, base 0 */ + [GDT_ENTRY_BOOT_CS] = GDT_ENTRY(0xc09b, 0, 0xfffff), + /* DS: data, read/write, 4 GB, base 0 */ + [GDT_ENTRY_BOOT_DS] = GDT_ENTRY(0xc093, 0, 0xfffff), + }; + struct gdt_ptr gdt; + + gdt.len = sizeof(boot_gdt)-1; + gdt.ptr = (u32)&boot_gdt + (ds() << 4); + + asm volatile("lgdtl %0" : : "m" (gdt)); +} + +/* + * Set up the IDT + */ +static void setup_idt(void) +{ + static const struct gdt_ptr null_idt = {0, 0}; + asm volatile("lidtl %0" : : "m" (null_idt)); +} + +/* + * Actual invocation sequence + */ +void go_to_protected_mode(void) +{ + /* Hook before leaving real mode, also disables interrupts */ + realmode_switch_hook(); + + /* Move the kernel/setup to their final resting places */ + move_kernel_around(); + + /* Enable the A20 gate */ + if (enable_a20()) { + puts("A20 gate not responding, unable to boot...\n"); + die(); + } + + /* Reset coprocessor (IGNNE#) */ + reset_coprocessor(); + + /* Mask all interrupts in the PIC */ + mask_all_interrupts(); + + /* Actual transition to protected mode... */ + setup_idt(); + setup_gdt(); + protected_mode_jump(boot_params.hdr.code32_start, + (u32)&boot_params + (ds() << 4)); +} diff --git a/arch/i386/boot/pmjump.S b/arch/i386/boot/pmjump.S new file mode 100644 index 000000000000..2e559233725a --- /dev/null +++ b/arch/i386/boot/pmjump.S @@ -0,0 +1,54 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/pmjump.S + * + * The actual transition into protected mode + */ + +#include <asm/boot.h> +#include <asm/segment.h> + + .text + + .globl protected_mode_jump + .type protected_mode_jump, @function + + .code16 + +/* + * void protected_mode_jump(u32 entrypoint, u32 bootparams); + */ +protected_mode_jump: + xorl %ebx, %ebx # Flag to indicate this is a boot + movl %edx, %esi # Pointer to boot_params table + movl %eax, 2f # Patch ljmpl instruction + jmp 1f # Short jump to flush instruction q. + +1: + movw $__BOOT_DS, %cx + + movl %cr0, %edx + orb $1, %dl # Protected mode (PE) bit + movl %edx, %cr0 + + movw %cx, %ds + movw %cx, %es + movw %cx, %fs + movw %cx, %gs + movw %cx, %ss + + # Jump to the 32-bit entrypoint + .byte 0x66, 0xea # ljmpl opcode +2: .long 0 # offset + .word __BOOT_CS # segment + + .size protected_mode_jump, .-protected_mode_jump diff --git a/arch/i386/boot/printf.c b/arch/i386/boot/printf.c new file mode 100644 index 000000000000..1a09f9309d3c --- /dev/null +++ b/arch/i386/boot/printf.c @@ -0,0 +1,307 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/printf.c + * + * Oh, it's a waste of space, but oh-so-yummy for debugging. This + * version of printf() does not include 64-bit support. "Live with + * it." + * + */ + +#include "boot.h" + +static int skip_atoi(const char **s) +{ + int i = 0; + + while (isdigit(**s)) + i = i * 10 + *((*s)++) - '0'; + return i; +} + +#define ZEROPAD 1 /* pad with zero */ +#define SIGN 2 /* unsigned/signed long */ +#define PLUS 4 /* show plus */ +#define SPACE 8 /* space if plus */ +#define LEFT 16 /* left justified */ +#define SPECIAL 32 /* 0x */ +#define LARGE 64 /* use 'ABCDEF' instead of 'abcdef' */ + +#define do_div(n,base) ({ \ +int __res; \ +__res = ((unsigned long) n) % (unsigned) base; \ +n = ((unsigned long) n) / (unsigned) base; \ +__res; }) + +static char *number(char *str, long num, int base, int size, int precision, + int type) +{ + char c, sign, tmp[66]; + const char *digits = "0123456789abcdefghijklmnopqrstuvwxyz"; + int i; + + if (type & LARGE) + digits = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; + if (type & LEFT) + type &= ~ZEROPAD; + if (base < 2 || base > 36) + return 0; + c = (type & ZEROPAD) ? '0' : ' '; + sign = 0; + if (type & SIGN) { + if (num < 0) { + sign = '-'; + num = -num; + size--; + } else if (type & PLUS) { + sign = '+'; + size--; + } else if (type & SPACE) { + sign = ' '; + size--; + } + } + if (type & SPECIAL) { + if (base == 16) + size -= 2; + else if (base == 8) + size--; + } + i = 0; + if (num == 0) + tmp[i++] = '0'; + else + while (num != 0) + tmp[i++] = digits[do_div(num, base)]; + if (i > precision) + precision = i; + size -= precision; + if (!(type & (ZEROPAD + LEFT))) + while (size-- > 0) + *str++ = ' '; + if (sign) + *str++ = sign; + if (type & SPECIAL) { + if (base == 8) + *str++ = '0'; + else if (base == 16) { + *str++ = '0'; + *str++ = digits[33]; + } + } + if (!(type & LEFT)) + while (size-- > 0) + *str++ = c; + while (i < precision--) + *str++ = '0'; + while (i-- > 0) + *str++ = tmp[i]; + while (size-- > 0) + *str++ = ' '; + return str; +} + +int vsprintf(char *buf, const char *fmt, va_list args) +{ + int len; + unsigned long num; + int i, base; + char *str; + const char *s; + + int flags; /* flags to number() */ + + int field_width; /* width of output field */ + int precision; /* min. # of digits for integers; max + number of chars for from string */ + int qualifier; /* 'h', 'l', or 'L' for integer fields */ + + for (str = buf; *fmt; ++fmt) { + if (*fmt != '%') { + *str++ = *fmt; + continue; + } + + /* process flags */ + flags = 0; + repeat: + ++fmt; /* this also skips first '%' */ + switch (*fmt) { + case '-': + flags |= LEFT; + goto repeat; + case '+': + flags |= PLUS; + goto repeat; + case ' ': + flags |= SPACE; + goto repeat; + case '#': + flags |= SPECIAL; + goto repeat; + case '0': + flags |= ZEROPAD; + goto repeat; + } + + /* get field width */ + field_width = -1; + if (isdigit(*fmt)) + field_width = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + field_width = va_arg(args, int); + if (field_width < 0) { + field_width = -field_width; + flags |= LEFT; + } + } + + /* get the precision */ + precision = -1; + if (*fmt == '.') { + ++fmt; + if (isdigit(*fmt)) + precision = skip_atoi(&fmt); + else if (*fmt == '*') { + ++fmt; + /* it's the next argument */ + precision = va_arg(args, int); + } + if (precision < 0) + precision = 0; + } + + /* get the conversion qualifier */ + qualifier = -1; + if (*fmt == 'h' || *fmt == 'l' || *fmt == 'L') { + qualifier = *fmt; + ++fmt; + } + + /* default base */ + base = 10; + + switch (*fmt) { + case 'c': + if (!(flags & LEFT)) + while (--field_width > 0) + *str++ = ' '; + *str++ = (unsigned char)va_arg(args, int); + while (--field_width > 0) + *str++ = ' '; + continue; + + case 's': + s = va_arg(args, char *); + len = strnlen(s, precision); + + if (!(flags & LEFT)) + while (len < field_width--) + *str++ = ' '; + for (i = 0; i < len; ++i) + *str++ = *s++; + while (len < field_width--) + *str++ = ' '; + continue; + + case 'p': + if (field_width == -1) { + field_width = 2 * sizeof(void *); + flags |= ZEROPAD; + } + str = number(str, + (unsigned long)va_arg(args, void *), 16, + field_width, precision, flags); + continue; + + case 'n': + if (qualifier == 'l') { + long *ip = va_arg(args, long *); + *ip = (str - buf); + } else { + int *ip = va_arg(args, int *); + *ip = (str - buf); + } + continue; + + case '%': + *str++ = '%'; + continue; + + /* integer number formats - set up the flags and "break" */ + case 'o': + base = 8; + break; + + case 'X': + flags |= LARGE; + case 'x': + base = 16; + break; + + case 'd': + case 'i': + flags |= SIGN; + case 'u': + break; + + default: + *str++ = '%'; + if (*fmt) + *str++ = *fmt; + else + --fmt; + continue; + } + if (qualifier == 'l') + num = va_arg(args, unsigned long); + else if (qualifier == 'h') { + num = (unsigned short)va_arg(args, int); + if (flags & SIGN) + num = (short)num; + } else if (flags & SIGN) + num = va_arg(args, int); + else + num = va_arg(args, unsigned int); + str = number(str, num, base, field_width, precision, flags); + } + *str = '\0'; + return str - buf; +} + +int sprintf(char *buf, const char *fmt, ...) +{ + va_list args; + int i; + + va_start(args, fmt); + i = vsprintf(buf, fmt, args); + va_end(args); + return i; +} + +int printf(const char *fmt, ...) +{ + char printf_buf[1024]; + va_list args; + int printed; + + va_start(args, fmt); + printed = vsprintf(printf_buf, fmt, args); + va_end(args); + + puts(printf_buf); + + return printed; +} diff --git a/arch/i386/boot/setup.S b/arch/i386/boot/setup.S deleted file mode 100644 index 6dbcc95b2120..000000000000 --- a/arch/i386/boot/setup.S +++ /dev/null @@ -1,1075 +0,0 @@ -/* - * setup.S Copyright (C) 1991, 1992 Linus Torvalds - * - * setup.s is responsible for getting the system data from the BIOS, - * and putting them into the appropriate places in system memory. - * both setup.s and system has been loaded by the bootblock. - * - * This code asks the bios for memory/disk/other parameters, and - * puts them in a "safe" place: 0x90000-0x901FF, ie where the - * boot-block used to be. It is then up to the protected mode - * system to read them from there before the area is overwritten - * for buffer-blocks. - * - * Move PS/2 aux init code to psaux.c - * (troyer@saifr00.cfsat.Honeywell.COM) 03Oct92 - * - * some changes and additional features by Christoph Niemann, - * March 1993/June 1994 (Christoph.Niemann@linux.org) - * - * add APM BIOS checking by Stephen Rothwell, May 1994 - * (sfr@canb.auug.org.au) - * - * High load stuff, initrd support and position independency - * by Hans Lermen & Werner Almesberger, February 1996 - * <lermen@elserv.ffm.fgan.de>, <almesber@lrc.epfl.ch> - * - * Video handling moved to video.S by Martin Mares, March 1996 - * <mj@k332.feld.cvut.cz> - * - * Extended memory detection scheme retwiddled by orc@pell.chi.il.us (david - * parsons) to avoid loadlin confusion, July 1997 - * - * Transcribed from Intel (as86) -> AT&T (gas) by Chris Noe, May 1999. - * <stiker@northlink.com> - * - * Fix to work around buggy BIOSes which don't use carry bit correctly - * and/or report extended memory in CX/DX for e801h memory size detection - * call. As a result the kernel got wrong figures. The int15/e801h docs - * from Ralf Brown interrupt list seem to indicate AX/BX should be used - * anyway. So to avoid breaking many machines (presumably there was a reason - * to orginally use CX/DX instead of AX/BX), we do a kludge to see - * if CX/DX have been changed in the e801 call and if so use AX/BX . - * Michael Miller, April 2001 <michaelm@mjmm.org> - * - * New A20 code ported from SYSLINUX by H. Peter Anvin. AMD Elan bugfixes - * by Robert Schwebel, December 2001 <robert@schwebel.de> - */ - -#include <asm/segment.h> -#include <linux/utsrelease.h> -#include <linux/compile.h> -#include <asm/boot.h> -#include <asm/e820.h> -#include <asm/page.h> -#include <asm/setup.h> - -/* Signature words to ensure LILO loaded us right */ -#define SIG1 0xAA55 -#define SIG2 0x5A5A - -INITSEG = DEF_INITSEG # 0x9000, we move boot here, out of the way -SYSSEG = DEF_SYSSEG # 0x1000, system loaded at 0x10000 (65536). -SETUPSEG = DEF_SETUPSEG # 0x9020, this is the current segment - # ... and the former contents of CS - -DELTA_INITSEG = SETUPSEG - INITSEG # 0x0020 - -.code16 -.globl begtext, begdata, begbss, endtext, enddata, endbss - -.text -begtext: -.data -begdata: -.bss -begbss: -.text - -start: - jmp trampoline - -# This is the setup header, and it must start at %cs:2 (old 0x9020:2) - - .ascii "HdrS" # header signature - .word 0x0206 # header version number (>= 0x0105) - # or else old loadlin-1.5 will fail) -realmode_swtch: .word 0, 0 # default_switch, SETUPSEG -start_sys_seg: .word SYSSEG - .word kernel_version # pointing to kernel version string - # above section of header is compatible - # with loadlin-1.5 (header v1.5). Don't - # change it. - -type_of_loader: .byte 0 # = 0, old one (LILO, Loadlin, - # Bootlin, SYSLX, bootsect...) - # See Documentation/i386/boot.txt for - # assigned ids - -# flags, unused bits must be zero (RFU) bit within loadflags -loadflags: -LOADED_HIGH = 1 # If set, the kernel is loaded high -CAN_USE_HEAP = 0x80 # If set, the loader also has set - # heap_end_ptr to tell how much - # space behind setup.S can be used for - # heap purposes. - # Only the loader knows what is free -#ifndef __BIG_KERNEL__ - .byte 0 -#else - .byte LOADED_HIGH -#endif - -setup_move_size: .word 0x8000 # size to move, when setup is not - # loaded at 0x90000. We will move setup - # to 0x90000 then just before jumping - # into the kernel. However, only the - # loader knows how much data behind - # us also needs to be loaded. - -code32_start: # here loaders can put a different - # start address for 32-bit code. -#ifndef __BIG_KERNEL__ - .long 0x1000 # 0x1000 = default for zImage -#else - .long 0x100000 # 0x100000 = default for big kernel -#endif - -ramdisk_image: .long 0 # address of loaded ramdisk image - # Here the loader puts the 32-bit - # address where it loaded the image. - # This only will be read by the kernel. - -ramdisk_size: .long 0 # its size in bytes - -bootsect_kludge: - .long 0 # obsolete - -heap_end_ptr: .word modelist+1024 # (Header version 0x0201 or later) - # space from here (exclusive) down to - # end of setup code can be used by setup - # for local heap purposes. - -pad1: .word 0 -cmd_line_ptr: .long 0 # (Header version 0x0202 or later) - # If nonzero, a 32-bit pointer - # to the kernel command line. - # The command line should be - # located between the start of - # setup and the end of low - # memory (0xa0000), or it may - # get overwritten before it - # gets read. If this field is - # used, there is no longer - # anything magical about the - # 0x90000 segment; the setup - # can be located anywhere in - # low memory 0x10000 or higher. - -ramdisk_max: .long (-__PAGE_OFFSET-(512 << 20)-1) & 0x7fffffff - # (Header version 0x0203 or later) - # The highest safe address for - # the contents of an initrd - -kernel_alignment: .long CONFIG_PHYSICAL_ALIGN #physical addr alignment - #required for protected mode - #kernel -#ifdef CONFIG_RELOCATABLE -relocatable_kernel: .byte 1 -#else -relocatable_kernel: .byte 0 -#endif -pad2: .byte 0 -pad3: .word 0 - -cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, - #added with boot protocol - #version 2.06 - -trampoline: call start_of_setup - .align 16 - # The offset at this point is 0x240 - .space (0xeff-0x240+1) # E820 & EDD space (ending at 0xeff) -# End of setup header ##################################################### - -start_of_setup: -# Bootlin depends on this being done early - movw $0x01500, %ax - movb $0x81, %dl - int $0x13 - -#ifdef SAFE_RESET_DISK_CONTROLLER -# Reset the disk controller. - movw $0x0000, %ax - movb $0x80, %dl - int $0x13 -#endif - -# Set %ds = %cs, we know that SETUPSEG = %cs at this point - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds -# Check signature at end of setup - cmpw $SIG1, setup_sig1 - jne bad_sig - - cmpw $SIG2, setup_sig2 - jne bad_sig - - jmp good_sig1 - -# Routine to print asciiz string at ds:si -prtstr: - lodsb - andb %al, %al - jz fin - - call prtchr - jmp prtstr - -fin: ret - -# Space printing -prtsp2: call prtspc # Print double space -prtspc: movb $0x20, %al # Print single space (note: fall-thru) - -# Part of above routine, this one just prints ascii al -prtchr: pushw %ax - pushw %cx - movw $7,%bx - movw $0x01, %cx - movb $0x0e, %ah - int $0x10 - popw %cx - popw %ax - ret - -beep: movb $0x07, %al - jmp prtchr - -no_sig_mess: .string "No setup signature found ..." - -good_sig1: - jmp good_sig - -# We now have to find the rest of the setup code/data -bad_sig: - movw %cs, %ax # SETUPSEG - subw $DELTA_INITSEG, %ax # INITSEG - movw %ax, %ds - xorb %bh, %bh - movb (497), %bl # get setup sect from bootsect - subw $4, %bx # LILO loads 4 sectors of setup - shlw $8, %bx # convert to words (1sect=2^8 words) - movw %bx, %cx - shrw $3, %bx # convert to segment - addw $SYSSEG, %bx - movw %bx, %cs:start_sys_seg -# Move rest of setup code/data to here - movw $2048, %di # four sectors loaded by LILO - subw %si, %si - pushw %cs - popw %es - movw $SYSSEG, %ax - movw %ax, %ds - rep - movsw - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds - cmpw $SIG1, setup_sig1 - jne no_sig - - cmpw $SIG2, setup_sig2 - jne no_sig - - jmp good_sig - -no_sig: - lea no_sig_mess, %si - call prtstr - -no_sig_loop: - hlt - jmp no_sig_loop - -good_sig: - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %ds -# Check if an old loader tries to load a big-kernel - testb $LOADED_HIGH, %cs:loadflags # Do we have a big kernel? - jz loader_ok # No, no danger for old loaders. - - cmpb $0, %cs:type_of_loader # Do we have a loader that - # can deal with us? - jnz loader_ok # Yes, continue. - - pushw %cs # No, we have an old loader, - popw %ds # die. - lea loader_panic_mess, %si - call prtstr - - jmp no_sig_loop - -loader_panic_mess: .string "Wrong loader, giving up..." - -# check minimum cpuid -# we do this here because it is the last place we can actually -# show a user visible error message. Later the video modus -# might be already messed up. -loader_ok: - call verify_cpu - testl %eax,%eax - jz cpu_ok - movw %cs,%ax # aka SETUPSEG - movw %ax,%ds - lea cpu_panic_mess,%si - call prtstr -1: jmp 1b - -cpu_panic_mess: - .asciz "PANIC: CPU too old for this kernel." - -#include "../kernel/verify_cpu.S" - -cpu_ok: -# Get memory size (extended mem, kB) - - xorl %eax, %eax - movl %eax, (0x1e0) -#ifndef STANDARD_MEMORY_BIOS_CALL - movb %al, (E820NR) -# Try three different memory detection schemes. First, try -# e820h, which lets us assemble a memory map, then try e801h, -# which returns a 32-bit memory size, and finally 88h, which -# returns 0-64m - -# method E820H: -# the memory map from hell. e820h returns memory classified into -# a whole bunch of different types, and allows memory holes and -# everything. We scan through this memory map and build a list -# of the first 32 memory areas, which we return at [E820MAP]. -# This is documented at http://www.acpi.info/, in the ACPI 2.0 specification. - -#define SMAP 0x534d4150 - -meme820: - xorl %ebx, %ebx # continuation counter - movw $E820MAP, %di # point into the whitelist - # so we can have the bios - # directly write into it. - -jmpe820: - movl $0x0000e820, %eax # e820, upper word zeroed - movl $SMAP, %edx # ascii 'SMAP' - movl $20, %ecx # size of the e820rec - pushw %ds # data record. - popw %es - int $0x15 # make the call - jc bail820 # fall to e801 if it fails - - cmpl $SMAP, %eax # check the return is `SMAP' - jne bail820 # fall to e801 if it fails - -# cmpl $1, 16(%di) # is this usable memory? -# jne again820 - - # If this is usable memory, we save it by simply advancing %di by - # sizeof(e820rec). - # -good820: - movb (E820NR), %al # up to 128 entries - cmpb $E820MAX, %al - jae bail820 - - incb (E820NR) - movw %di, %ax - addw $20, %ax - movw %ax, %di -again820: - cmpl $0, %ebx # check to see if - jne jmpe820 # %ebx is set to EOF -bail820: - - -# method E801H: -# memory size is in 1k chunksizes, to avoid confusing loadlin. -# we store the 0xe801 memory size in a completely different place, -# because it will most likely be longer than 16 bits. -# (use 1e0 because that's what Larry Augustine uses in his -# alternative new memory detection scheme, and it's sensible -# to write everything into the same place.) - -meme801: - stc # fix to work around buggy - xorw %cx,%cx # BIOSes which don't clear/set - xorw %dx,%dx # carry on pass/error of - # e801h memory size call - # or merely pass cx,dx though - # without changing them. - movw $0xe801, %ax - int $0x15 - jc mem88 - - cmpw $0x0, %cx # Kludge to handle BIOSes - jne e801usecxdx # which report their extended - cmpw $0x0, %dx # memory in AX/BX rather than - jne e801usecxdx # CX/DX. The spec I have read - movw %ax, %cx # seems to indicate AX/BX - movw %bx, %dx # are more reasonable anyway... - -e801usecxdx: - andl $0xffff, %edx # clear sign extend - shll $6, %edx # and go from 64k to 1k chunks - movl %edx, (0x1e0) # store extended memory size - andl $0xffff, %ecx # clear sign extend - addl %ecx, (0x1e0) # and add lower memory into - # total size. - -# Ye Olde Traditional Methode. Returns the memory size (up to 16mb or -# 64mb, depending on the bios) in ax. -mem88: - -#endif - movb $0x88, %ah - int $0x15 - movw %ax, (2) - -# Set the keyboard repeat rate to the max - movw $0x0305, %ax - xorw %bx, %bx - int $0x16 - -# Check for video adapter and its parameters and allow the -# user to browse video modes. - call video # NOTE: we need %ds pointing - # to bootsector - -# Get hd0 data... - xorw %ax, %ax - movw %ax, %ds - ldsw (4 * 0x41), %si - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - pushw %ax - movw %ax, %es - movw $0x0080, %di - movw $0x10, %cx - pushw %cx - cld - rep - movsb -# Get hd1 data... - xorw %ax, %ax - movw %ax, %ds - ldsw (4 * 0x46), %si - popw %cx - popw %es - movw $0x0090, %di - rep - movsb -# Check that there IS a hd1 :-) - movw $0x01500, %ax - movb $0x81, %dl - int $0x13 - jc no_disk1 - - cmpb $3, %ah - je is_disk1 - -no_disk1: - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %es - movw $0x0090, %di - movw $0x10, %cx - xorw %ax, %ax - cld - rep - stosb -is_disk1: -# check for Micro Channel (MCA) bus - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %ds - xorw %ax, %ax - movw %ax, (0xa0) # set table length to 0 - movb $0xc0, %ah - stc - int $0x15 # moves feature table to es:bx - jc no_mca - - pushw %ds - movw %es, %ax - movw %ax, %ds - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %es - movw %bx, %si - movw $0xa0, %di - movw (%si), %cx - addw $2, %cx # table length is a short - cmpw $0x10, %cx - jc sysdesc_ok - - movw $0x10, %cx # we keep only first 16 bytes -sysdesc_ok: - rep - movsb - popw %ds -no_mca: -#ifdef CONFIG_X86_VOYAGER - movb $0xff, 0x40 # flag on config found - movb $0xc0, %al - mov $0xff, %ah - int $0x15 # put voyager config info at es:di - jc no_voyager - movw $0x40, %si # place voyager info in apm table - cld - movw $7, %cx -voyager_rep: - movb %es:(%di), %al - movb %al,(%si) - incw %di - incw %si - decw %cx - jnz voyager_rep -no_voyager: -#endif -# Check for PS/2 pointing device - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %ds - movb $0, (0x1ff) # default is no pointing device - int $0x11 # int 0x11: equipment list - testb $0x04, %al # check if mouse installed - jz no_psmouse - - movb $0xAA, (0x1ff) # device present -no_psmouse: - -#if defined(CONFIG_X86_SPEEDSTEP_SMI) || defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE) - movl $0x0000E980, %eax # IST Support - movl $0x47534943, %edx # Request value - int $0x15 - - movl %eax, (96) - movl %ebx, (100) - movl %ecx, (104) - movl %edx, (108) -#endif - -#if defined(CONFIG_APM) || defined(CONFIG_APM_MODULE) -# Then check for an APM BIOS... - # %ds points to the bootsector - movw $0, 0x40 # version = 0 means no APM BIOS - movw $0x05300, %ax # APM BIOS installation check - xorw %bx, %bx - int $0x15 - jc done_apm_bios # Nope, no APM BIOS - - cmpw $0x0504d, %bx # Check for "PM" signature - jne done_apm_bios # No signature, no APM BIOS - - andw $0x02, %cx # Is 32 bit supported? - je done_apm_bios # No 32-bit, no (good) APM BIOS - - movw $0x05304, %ax # Disconnect first just in case - xorw %bx, %bx - int $0x15 # ignore return code - movw $0x05303, %ax # 32 bit connect - xorl %ebx, %ebx - xorw %cx, %cx # paranoia :-) - xorw %dx, %dx # ... - xorl %esi, %esi # ... - xorw %di, %di # ... - int $0x15 - jc no_32_apm_bios # Ack, error. - - movw %ax, (66) # BIOS code segment - movl %ebx, (68) # BIOS entry point offset - movw %cx, (72) # BIOS 16 bit code segment - movw %dx, (74) # BIOS data segment - movl %esi, (78) # BIOS code segment lengths - movw %di, (82) # BIOS data segment length -# Redo the installation check as the 32 bit connect -# modifies the flags returned on some BIOSs - movw $0x05300, %ax # APM BIOS installation check - xorw %bx, %bx - xorw %cx, %cx # paranoia - int $0x15 - jc apm_disconnect # error -> shouldn't happen - - cmpw $0x0504d, %bx # check for "PM" signature - jne apm_disconnect # no sig -> shouldn't happen - - movw %ax, (64) # record the APM BIOS version - movw %cx, (76) # and flags - jmp done_apm_bios - -apm_disconnect: # Tidy up - movw $0x05304, %ax # Disconnect - xorw %bx, %bx - int $0x15 # ignore return code - - jmp done_apm_bios - -no_32_apm_bios: - andw $0xfffd, (76) # remove 32 bit support bit -done_apm_bios: -#endif - -#include "edd.S" - -# Now we want to move to protected mode ... - cmpw $0, %cs:realmode_swtch - jz rmodeswtch_normal - - lcall *%cs:realmode_swtch - - jmp rmodeswtch_end - -rmodeswtch_normal: - pushw %cs - call default_switch - -rmodeswtch_end: -# Now we move the system to its rightful place ... but we check if we have a -# big-kernel. In that case we *must* not move it ... - testb $LOADED_HIGH, %cs:loadflags - jz do_move0 # .. then we have a normal low - # loaded zImage - # .. or else we have a high - # loaded bzImage - jmp end_move # ... and we skip moving - -do_move0: - movw $0x100, %ax # start of destination segment - movw %cs, %bp # aka SETUPSEG - subw $DELTA_INITSEG, %bp # aka INITSEG - movw %cs:start_sys_seg, %bx # start of source segment - cld -do_move: - movw %ax, %es # destination segment - incb %ah # instead of add ax,#0x100 - movw %bx, %ds # source segment - addw $0x100, %bx - subw %di, %di - subw %si, %si - movw $0x800, %cx - rep - movsw - cmpw %bp, %bx # assume start_sys_seg > 0x200, - # so we will perhaps read one - # page more than needed, but - # never overwrite INITSEG - # because destination is a - # minimum one page below source - jb do_move - -end_move: -# then we load the segment descriptors - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds - -# Check whether we need to be downward compatible with version <=201 - cmpl $0, cmd_line_ptr - jne end_move_self # loader uses version >=202 features - cmpb $0x20, type_of_loader - je end_move_self # bootsect loader, we know of it - -# Boot loader doesnt support boot protocol version 2.02. -# If we have our code not at 0x90000, we need to move it there now. -# We also then need to move the params behind it (commandline) -# Because we would overwrite the code on the current IP, we move -# it in two steps, jumping high after the first one. - movw %cs, %ax - cmpw $SETUPSEG, %ax - je end_move_self - - cli # make sure we really have - # interrupts disabled ! - # because after this the stack - # should not be used - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ss, %dx - cmpw %ax, %dx - jb move_self_1 - - addw $INITSEG, %dx - subw %ax, %dx # this will go into %ss after - # the move -move_self_1: - movw %ax, %ds - movw $INITSEG, %ax # real INITSEG - movw %ax, %es - movw %cs:setup_move_size, %cx - std # we have to move up, so we use - # direction down because the - # areas may overlap - movw %cx, %di - decw %di - movw %di, %si - subw $move_self_here+0x200, %cx - rep - movsb - ljmp $SETUPSEG, $move_self_here - -move_self_here: - movw $move_self_here+0x200, %cx - rep - movsb - movw $SETUPSEG, %ax - movw %ax, %ds - movw %dx, %ss -end_move_self: # now we are at the right place - -# -# Enable A20. This is at the very best an annoying procedure. -# A20 code ported from SYSLINUX 1.52-1.63 by H. Peter Anvin. -# AMD Elan bug fix by Robert Schwebel. -# - -#if defined(CONFIG_X86_ELAN) - movb $0x02, %al # alternate A20 gate - outb %al, $0x92 # this works on SC410/SC520 -a20_elan_wait: - call a20_test - jz a20_elan_wait - jmp a20_done -#endif - - -A20_TEST_LOOPS = 32 # Iterations per wait -A20_ENABLE_LOOPS = 255 # Total loops to try - - -#ifndef CONFIG_X86_VOYAGER -a20_try_loop: - - # First, see if we are on a system with no A20 gate. -a20_none: - call a20_test - jnz a20_done - - # Next, try the BIOS (INT 0x15, AX=0x2401) -a20_bios: - movw $0x2401, %ax - pushfl # Be paranoid about flags - int $0x15 - popfl - - call a20_test - jnz a20_done - - # Try enabling A20 through the keyboard controller -#endif /* CONFIG_X86_VOYAGER */ -a20_kbc: - call empty_8042 - -#ifndef CONFIG_X86_VOYAGER - call a20_test # Just in case the BIOS worked - jnz a20_done # but had a delayed reaction. -#endif - - movb $0xD1, %al # command write - outb %al, $0x64 - call empty_8042 - - movb $0xDF, %al # A20 on - outb %al, $0x60 - call empty_8042 - -#ifndef CONFIG_X86_VOYAGER - # Wait until a20 really *is* enabled; it can take a fair amount of - # time on certain systems; Toshiba Tecras are known to have this - # problem. -a20_kbc_wait: - xorw %cx, %cx -a20_kbc_wait_loop: - call a20_test - jnz a20_done - loop a20_kbc_wait_loop - - # Final attempt: use "configuration port A" -a20_fast: - inb $0x92, %al # Configuration Port A - orb $0x02, %al # "fast A20" version - andb $0xFE, %al # don't accidentally reset - outb %al, $0x92 - - # Wait for configuration port A to take effect -a20_fast_wait: - xorw %cx, %cx -a20_fast_wait_loop: - call a20_test - jnz a20_done - loop a20_fast_wait_loop - - # A20 is still not responding. Try frobbing it again. - # - decb (a20_tries) - jnz a20_try_loop - - movw $a20_err_msg, %si - call prtstr - -a20_die: - hlt - jmp a20_die - -a20_tries: - .byte A20_ENABLE_LOOPS - -a20_err_msg: - .ascii "linux: fatal error: A20 gate not responding!" - .byte 13, 10, 0 - - # If we get here, all is good -a20_done: - -#endif /* CONFIG_X86_VOYAGER */ -# set up gdt and idt and 32bit start address - lidt idt_48 # load idt with 0,0 - xorl %eax, %eax # Compute gdt_base - movw %ds, %ax # (Convert %ds:gdt to a linear ptr) - shll $4, %eax - addl %eax, code32 - addl $gdt, %eax - movl %eax, (gdt_48+2) - lgdt gdt_48 # load gdt with whatever is - # appropriate - -# make sure any possible coprocessor is properly reset.. - xorw %ax, %ax - outb %al, $0xf0 - call delay - - outb %al, $0xf1 - call delay - -# well, that went ok, I hope. Now we mask all interrupts - the rest -# is done in init_IRQ(). - movb $0xFF, %al # mask all interrupts for now - outb %al, $0xA1 - call delay - - movb $0xFB, %al # mask all irq's but irq2 which - outb %al, $0x21 # is cascaded - -# Well, that certainly wasn't fun :-(. Hopefully it works, and we don't -# need no steenking BIOS anyway (except for the initial loading :-). -# The BIOS-routine wants lots of unnecessary data, and it's less -# "interesting" anyway. This is how REAL programmers do it. -# -# Well, now's the time to actually move into protected mode. To make -# things as simple as possible, we do no register set-up or anything, -# we let the gnu-compiled 32-bit programs do that. We just jump to -# absolute address 0x1000 (or the loader supplied one), -# in 32-bit protected mode. -# -# Note that the short jump isn't strictly needed, although there are -# reasons why it might be a good idea. It won't hurt in any case. - movw $1, %ax # protected mode (PE) bit - lmsw %ax # This is it! - jmp flush_instr - -flush_instr: - xorw %bx, %bx # Flag to indicate a boot - xorl %esi, %esi # Pointer to real-mode code - movw %cs, %si - subw $DELTA_INITSEG, %si - shll $4, %esi # Convert to 32-bit pointer - -# jump to startup_32 in arch/i386/boot/compressed/head.S -# -# NOTE: For high loaded big kernels we need a -# jmpi 0x100000,__BOOT_CS -# -# but we yet haven't reloaded the CS register, so the default size -# of the target offset still is 16 bit. -# However, using an operand prefix (0x66), the CPU will properly -# take our 48 bit far pointer. (INTeL 80386 Programmer's Reference -# Manual, Mixing 16-bit and 32-bit code, page 16-6) - - .byte 0x66, 0xea # prefix + jmpi-opcode -code32: .long startup_32 # will be set to %cs+startup_32 - .word __BOOT_CS -.code32 -startup_32: - movl $(__BOOT_DS), %eax - movl %eax, %ds - movl %eax, %es - movl %eax, %fs - movl %eax, %gs - movl %eax, %ss - - xorl %eax, %eax -1: incl %eax # check that A20 really IS enabled - movl %eax, 0x00000000 # loop forever if it isn't - cmpl %eax, 0x00100000 - je 1b - - # Jump to the 32bit entry point - jmpl *(code32_start - start + (DELTA_INITSEG << 4))(%esi) -.code16 - -# Here's a bunch of information about your current kernel.. -kernel_version: .ascii UTS_RELEASE - .ascii " (" - .ascii LINUX_COMPILE_BY - .ascii "@" - .ascii LINUX_COMPILE_HOST - .ascii ") " - .ascii UTS_VERSION - .byte 0 - -# This is the default real mode switch routine. -# to be called just before protected mode transition -default_switch: - cli # no interrupts allowed ! - movb $0x80, %al # disable NMI for bootup - # sequence - outb %al, $0x70 - lret - - -#ifndef CONFIG_X86_VOYAGER -# This routine tests whether or not A20 is enabled. If so, it -# exits with zf = 0. -# -# The memory address used, 0x200, is the int $0x80 vector, which -# should be safe. - -A20_TEST_ADDR = 4*0x80 - -a20_test: - pushw %cx - pushw %ax - xorw %cx, %cx - movw %cx, %fs # Low memory - decw %cx - movw %cx, %gs # High memory area - movw $A20_TEST_LOOPS, %cx - movw %fs:(A20_TEST_ADDR), %ax - pushw %ax -a20_test_wait: - incw %ax - movw %ax, %fs:(A20_TEST_ADDR) - call delay # Serialize and make delay constant - cmpw %gs:(A20_TEST_ADDR+0x10), %ax - loope a20_test_wait - - popw %fs:(A20_TEST_ADDR) - popw %ax - popw %cx - ret - -#endif /* CONFIG_X86_VOYAGER */ - -# This routine checks that the keyboard command queue is empty -# (after emptying the output buffers) -# -# Some machines have delusions that the keyboard buffer is always full -# with no keyboard attached... -# -# If there is no keyboard controller, we will usually get 0xff -# to all the reads. With each IO taking a microsecond and -# a timeout of 100,000 iterations, this can take about half a -# second ("delay" == outb to port 0x80). That should be ok, -# and should also be plenty of time for a real keyboard controller -# to empty. -# - -empty_8042: - pushl %ecx - movl $100000, %ecx - -empty_8042_loop: - decl %ecx - jz empty_8042_end_loop - - call delay - - inb $0x64, %al # 8042 status port - testb $1, %al # output buffer? - jz no_output - - call delay - inb $0x60, %al # read it - jmp empty_8042_loop - -no_output: - testb $2, %al # is input buffer full? - jnz empty_8042_loop # yes - loop -empty_8042_end_loop: - popl %ecx - ret - -# Read the cmos clock. Return the seconds in al -gettime: - pushw %cx - movb $0x02, %ah - int $0x1a - movb %dh, %al # %dh contains the seconds - andb $0x0f, %al - movb %dh, %ah - movb $0x04, %cl - shrb %cl, %ah - aad - popw %cx - ret - -# Delay is needed after doing I/O -delay: - outb %al,$0x80 - ret - -# Descriptor tables -# -# NOTE: The intel manual says gdt should be sixteen bytes aligned for -# efficiency reasons. However, there are machines which are known not -# to boot with misaligned GDTs, so alter this at your peril! If you alter -# GDT_ENTRY_BOOT_CS (in asm/segment.h) remember to leave at least two -# empty GDT entries (one for NULL and one reserved). -# -# NOTE: On some CPUs, the GDT must be 8 byte aligned. This is -# true for the Voyager Quad CPU card which will not boot without -# This directive. 16 byte aligment is recommended by intel. -# - .align 16 -gdt: - .fill GDT_ENTRY_BOOT_CS,8,0 - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9A00 # code read/exec - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9200 # data read/write - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) -gdt_end: - .align 4 - - .word 0 # alignment byte -idt_48: - .word 0 # idt limit = 0 - .word 0, 0 # idt base = 0L - - .word 0 # alignment byte -gdt_48: - .word gdt_end - gdt - 1 # gdt limit - .word 0, 0 # gdt base (filled in later) - -# Include video setup & detection code - -#include "video.S" - -# Setup signature -- must be last -setup_sig1: .word SIG1 -setup_sig2: .word SIG2 - -# After this point, there is some free space which is used by the video mode -# handling code to store the temporary mode table (not used by the kernel). - -modelist: - -.text -endtext: -.data -enddata: -.bss -endbss: diff --git a/arch/i386/boot/setup.ld b/arch/i386/boot/setup.ld new file mode 100644 index 000000000000..df9234b3a5e0 --- /dev/null +++ b/arch/i386/boot/setup.ld @@ -0,0 +1,54 @@ +/* + * setup.ld + * + * Linker script for the i386 setup code + */ +OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386") +OUTPUT_ARCH(i386) +ENTRY(_start) + +SECTIONS +{ + . = 0; + .bstext : { *(.bstext) } + .bsdata : { *(.bsdata) } + + . = 497; + .header : { *(.header) } + .inittext : { *(.inittext) } + .initdata : { *(.initdata) } + .text : { *(.text*) } + + . = ALIGN(16); + .rodata : { *(.rodata*) } + + .videocards : { + video_cards = .; + *(.videocards) + video_cards_end = .; + } + + . = ALIGN(16); + .data : { *(.data*) } + + .signature : { + setup_sig = .; + LONG(0x5a5aaa55) + } + + + . = ALIGN(16); + .bss : + { + __bss_start = .; + *(.bss) + __bss_end = .; + } + . = ALIGN(16); + _end = .; + + /DISCARD/ : { *(.note*) } + + . = ASSERT(_end <= 0x8000, "Setup too big!"); + . = ASSERT(hdr == 0x1f1, "The setup header has the wrong offset!"); +} diff --git a/arch/i386/boot/string.c b/arch/i386/boot/string.c new file mode 100644 index 000000000000..481a22097781 --- /dev/null +++ b/arch/i386/boot/string.c @@ -0,0 +1,52 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/string.c + * + * Very basic string functions + */ + +#include "boot.h" + +int strcmp(const char *str1, const char *str2) +{ + const unsigned char *s1 = (const unsigned char *)str1; + const unsigned char *s2 = (const unsigned char *)str2; + int delta = 0; + + while (*s1 || *s2) { + delta = *s2 - *s1; + if (delta) + return delta; + s1++; + s2++; + } + return 0; +} + +size_t strnlen(const char *s, size_t maxlen) +{ + const char *es = s; + while (*es && maxlen) { + es++; + maxlen--; + } + + return (es - s); +} + +unsigned int atou(const char *s) +{ + unsigned int i = 0; + while (isdigit(*s)) + i = i * 10 + (*s++ - '0'); + return i; +} diff --git a/arch/i386/boot/tools/build.c b/arch/i386/boot/tools/build.c index 05798419a6a9..886f47d8a488 100644 --- a/arch/i386/boot/tools/build.c +++ b/arch/i386/boot/tools/build.c @@ -1,13 +1,12 @@ /* * Copyright (C) 1991, 1992 Linus Torvalds * Copyright (C) 1997 Martin Mares + * Copyright (C) 2007 H. Peter Anvin */ /* * This file builds a disk-image from three different files: * - * - bootsect: compatibility mbr which prints an error message if - * someone tries to boot the kernel directly. * - setup: 8086 machine code, sets up system parm * - system: 80386 code for actual system * @@ -21,6 +20,7 @@ * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 * Cross compiling fixes by Gertjan van Wingerde, July 1996 * Rewritten by Martin Mares, April 1997 + * Substantially overhauled by H. Peter Anvin, April 2007 */ #include <stdio.h> @@ -32,23 +32,25 @@ #include <sys/sysmacros.h> #include <unistd.h> #include <fcntl.h> +#include <sys/mman.h> #include <asm/boot.h> -typedef unsigned char byte; -typedef unsigned short word; -typedef unsigned long u32; +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned long u32; #define DEFAULT_MAJOR_ROOT 0 #define DEFAULT_MINOR_ROOT 0 -/* Minimal number of setup sectors (see also bootsect.S) */ -#define SETUP_SECTS 4 +/* Minimal number of setup sectors */ +#define SETUP_SECT_MIN 5 +#define SETUP_SECT_MAX 64 -byte buf[1024]; -int fd; +/* This must be large enough to hold the entire setup */ +u8 buf[SETUP_SECT_MAX*512]; int is_big_kernel; -void die(const char * str, ...) +static void die(const char * str, ...) { va_list args; va_start(args, str); @@ -57,15 +59,9 @@ void die(const char * str, ...) exit(1); } -void file_open(const char *name) +static void usage(void) { - if ((fd = open(name, O_RDONLY, 0)) < 0) - die("Unable to open `%s': %m", name); -} - -void usage(void) -{ - die("Usage: build [-b] bootsect setup system [rootdev] [> image]"); + die("Usage: build [-b] setup system [rootdev] [> image]"); } int main(int argc, char ** argv) @@ -73,27 +69,30 @@ int main(int argc, char ** argv) unsigned int i, sz, setup_sectors; int c; u32 sys_size; - byte major_root, minor_root; + u8 major_root, minor_root; struct stat sb; + FILE *file; + int fd; + void *kernel; if (argc > 2 && !strcmp(argv[1], "-b")) { is_big_kernel = 1; argc--, argv++; } - if ((argc < 4) || (argc > 5)) + if ((argc < 3) || (argc > 4)) usage(); - if (argc > 4) { - if (!strcmp(argv[4], "CURRENT")) { + if (argc > 3) { + if (!strcmp(argv[3], "CURRENT")) { if (stat("/", &sb)) { perror("/"); die("Couldn't stat /"); } major_root = major(sb.st_dev); minor_root = minor(sb.st_dev); - } else if (strcmp(argv[4], "FLOPPY")) { - if (stat(argv[4], &sb)) { - perror(argv[4]); + } else if (strcmp(argv[3], "FLOPPY")) { + if (stat(argv[3], &sb)) { + perror(argv[3]); die("Couldn't stat root device."); } major_root = major(sb.st_rdev); @@ -108,79 +107,62 @@ int main(int argc, char ** argv) } fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root); - file_open(argv[1]); - i = read(fd, buf, sizeof(buf)); - fprintf(stderr,"Boot sector %d bytes.\n",i); - if (i != 512) - die("Boot block must be exactly 512 bytes"); + /* Copy the setup code */ + file = fopen(argv[1], "r"); + if (!file) + die("Unable to open `%s': %m", argv[1]); + c = fread(buf, 1, sizeof(buf), file); + if (ferror(file)) + die("read-error on `setup'"); + if (c < 1024) + die("The setup must be at least 1024 bytes"); if (buf[510] != 0x55 || buf[511] != 0xaa) die("Boot block hasn't got boot flag (0xAA55)"); + fclose(file); + + /* Pad unused space with zeros */ + setup_sectors = (c + 511) / 512; + if (setup_sectors < SETUP_SECT_MIN) + setup_sectors = SETUP_SECT_MIN; + i = setup_sectors*512; + memset(buf+c, 0, i-c); + + /* Set the default root device */ buf[508] = minor_root; buf[509] = major_root; - if (write(1, buf, 512) != 512) - die("Write call failed"); - close (fd); - - file_open(argv[2]); /* Copy the setup code */ - for (i=0 ; (c=read(fd, buf, sizeof(buf)))>0 ; i+=c ) - if (write(1, buf, c) != c) - die("Write call failed"); - if (c != 0) - die("read-error on `setup'"); - close (fd); - - setup_sectors = (i + 511) / 512; /* Pad unused space with zeros */ - /* for compatibility with ancient versions of LILO. */ - if (setup_sectors < SETUP_SECTS) - setup_sectors = SETUP_SECTS; - fprintf(stderr, "Setup is %d bytes.\n", i); - memset(buf, 0, sizeof(buf)); - while (i < setup_sectors * 512) { - c = setup_sectors * 512 - i; - if (c > sizeof(buf)) - c = sizeof(buf); - if (write(1, buf, c) != c) - die("Write call failed"); - i += c; - } - file_open(argv[3]); - if (fstat (fd, &sb)) - die("Unable to stat `%s': %m", argv[3]); + fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i); + + /* Open and stat the kernel file */ + fd = open(argv[2], O_RDONLY); + if (fd < 0) + die("Unable to open `%s': %m", argv[2]); + if (fstat(fd, &sb)) + die("Unable to stat `%s': %m", argv[2]); sz = sb.st_size; - fprintf (stderr, "System is %d kB\n", sz/1024); + fprintf (stderr, "System is %d kB\n", (sz+1023)/1024); + kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0); + if (kernel == MAP_FAILED) + die("Unable to mmap '%s': %m", argv[2]); sys_size = (sz + 15) / 16; if (!is_big_kernel && sys_size > DEF_SYSSIZE) die("System is too big. Try using bzImage or modules."); - while (sz > 0) { - int l, n; - - l = (sz > sizeof(buf)) ? sizeof(buf) : sz; - if ((n=read(fd, buf, l)) != l) { - if (n < 0) - die("Error reading %s: %m", argv[3]); - else - die("%s: Unexpected EOF", argv[3]); - } - if (write(1, buf, l) != l) - die("Write failed"); - sz -= l; - } + + /* Patch the setup code with the appropriate size parameters */ + buf[0x1f1] = setup_sectors-1; + buf[0x1f4] = sys_size; + buf[0x1f5] = sys_size >> 8; + buf[0x1f6] = sys_size >> 16; + buf[0x1f7] = sys_size >> 24; + + if (fwrite(buf, 1, i, stdout) != i) + die("Writing setup failed"); + + /* Copy the kernel code */ + if (fwrite(kernel, 1, sz, stdout) != sz) + die("Writing kernel failed"); close(fd); - if (lseek(1, 497, SEEK_SET) != 497) /* Write sizes to the bootsector */ - die("Output: seek failed"); - buf[0] = setup_sectors; - if (write(1, buf, 1) != 1) - die("Write of setup sector count failed"); - if (lseek(1, 500, SEEK_SET) != 500) - die("Output: seek failed"); - buf[0] = (sys_size & 0xff); - buf[1] = ((sys_size >> 8) & 0xff); - buf[2] = ((sys_size >> 16) & 0xff); - buf[3] = ((sys_size >> 24) & 0xff); - if (write(1, buf, 4) != 4) - die("Write of image length failed"); - - return 0; /* Everything is OK */ + /* Everything is OK */ + return 0; } diff --git a/arch/i386/boot/tty.c b/arch/i386/boot/tty.c new file mode 100644 index 000000000000..a8db78736b02 --- /dev/null +++ b/arch/i386/boot/tty.c @@ -0,0 +1,112 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/tty.c + * + * Very simple screen I/O + * XXX: Probably should add very simple serial I/O? + */ + +#include "boot.h" + +/* + * These functions are in .inittext so they can be used to signal + * error during initialization. + */ + +void __attribute__((section(".inittext"))) putchar(int ch) +{ + unsigned char c = ch; + + if (c == '\n') + putchar('\r'); /* \n -> \r\n */ + + /* int $0x10 is known to have bugs involving touching registers + it shouldn't. Be extra conservative... */ + asm volatile("pushal; int $0x10; popal" + : : "b" (0x0007), "c" (0x0001), "a" (0x0e00|ch)); +} + +void __attribute__((section(".inittext"))) puts(const char *str) +{ + int n = 0; + while (*str) { + putchar(*str++); + n++; + } +} + +/* + * Read the CMOS clock through the BIOS, and return the + * seconds in BCD. + */ + +static u8 gettime(void) +{ + u16 ax = 0x0200; + u16 cx, dx; + + asm("int $0x1a" + : "+a" (ax), "=c" (cx), "=d" (dx) + : : "ebx", "esi", "edi"); + + return dx >> 8; +} + +/* + * Read from the keyboard + */ +int getchar(void) +{ + u16 ax = 0; + asm("int $0x16" : "+a" (ax)); + + return ax & 0xff; +} + +static int kbd_pending(void) +{ + u8 pending; + asm("int $0x16; setnz %0" + : "=rm" (pending) + : "a" (0x0100)); + return pending; +} + +void kbd_flush(void) +{ + for (;;) { + if (!kbd_pending()) + break; + getchar(); + } +} + +int getchar_timeout(void) +{ + int cnt = 30; + int t0, t1; + + t0 = gettime(); + + while (cnt) { + if (kbd_pending()) + return getchar(); + + t1 = gettime(); + if (t0 != t1) { + cnt--; + t0 = t1; + } + } + + return 0; /* Timeout! */ +} diff --git a/arch/i386/boot/version.c b/arch/i386/boot/version.c new file mode 100644 index 000000000000..c61462f7d9a7 --- /dev/null +++ b/arch/i386/boot/version.c @@ -0,0 +1,23 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/version.c + * + * Kernel version string + */ + +#include "boot.h" +#include <linux/utsrelease.h> +#include <linux/compile.h> + +const char kernel_version[] = + UTS_RELEASE " (" LINUX_COMPILE_BY "@" LINUX_COMPILE_HOST ") " + UTS_VERSION; diff --git a/arch/i386/boot/vesa.h b/arch/i386/boot/vesa.h new file mode 100644 index 000000000000..ff5b73cd406f --- /dev/null +++ b/arch/i386/boot/vesa.h @@ -0,0 +1,79 @@ +/* ----------------------------------------------------------------------- * + * + * Copyright 1999-2007 H. Peter Anvin - All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, Inc., 53 Temple Place Ste 330, + * Boston MA 02111-1307, USA; either version 2 of the License, or + * (at your option) any later version; incorporated herein by reference. + * + * ----------------------------------------------------------------------- */ + +#ifndef BOOT_VESA_H +#define BOOT_VESA_H + +typedef struct { + u16 off, seg; +} far_ptr; + +/* VESA General Information table */ +struct vesa_general_info { + u32 signature; /* 0 Magic number = "VESA" */ + u16 version; /* 4 */ + far_ptr vendor_string; /* 6 */ + u32 capabilities; /* 10 */ + far_ptr video_mode_ptr; /* 14 */ + u16 total_memory; /* 18 */ + + u16 oem_software_rev; /* 20 */ + far_ptr oem_vendor_name_ptr; /* 22 */ + far_ptr oem_product_name_ptr; /* 26 */ + far_ptr oem_product_rev_ptr; /* 30 */ + + u8 reserved[222]; /* 34 */ + u8 oem_data[256]; /* 256 */ +} __attribute__ ((packed)); + +#define VESA_MAGIC ('V' + ('E' << 8) + ('S' << 16) + ('A' << 24)) +#define VBE2_MAGIC ('V' + ('B' << 8) + ('E' << 16) + ('2' << 24)) + +struct vesa_mode_info { + u16 mode_attr; /* 0 */ + u8 win_attr[2]; /* 2 */ + u16 win_grain; /* 4 */ + u16 win_size; /* 6 */ + u16 win_seg[2]; /* 8 */ + far_ptr win_scheme; /* 12 */ + u16 logical_scan; /* 16 */ + + u16 h_res; /* 18 */ + u16 v_res; /* 20 */ + u8 char_width; /* 22 */ + u8 char_height; /* 23 */ + u8 memory_planes; /* 24 */ + u8 bpp; /* 25 */ + u8 banks; /* 26 */ + u8 memory_layout; /* 27 */ + u8 bank_size; /* 28 */ + u8 image_planes; /* 29 */ + u8 page_function; /* 30 */ + + u8 rmask; /* 31 */ + u8 rpos; /* 32 */ + u8 gmask; /* 33 */ + u8 gpos; /* 34 */ + u8 bmask; /* 35 */ + u8 bpos; /* 36 */ + u8 resv_mask; /* 37 */ + u8 resv_pos; /* 38 */ + u8 dcm_info; /* 39 */ + + u32 lfb_ptr; /* 40 Linear frame buffer address */ + u32 offscreen_ptr; /* 44 Offscreen memory address */ + u16 offscreen_size; /* 48 */ + + u8 reserved[206]; /* 50 */ +} __attribute__ ((packed)); + +#endif /* LIB_SYS_VESA_H */ diff --git a/arch/i386/boot/video-bios.c b/arch/i386/boot/video-bios.c new file mode 100644 index 000000000000..afea46c500cc --- /dev/null +++ b/arch/i386/boot/video-bios.c @@ -0,0 +1,125 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/video-bios.c + * + * Standard video BIOS modes + * + * We have two options for this; silent and scanned. + */ + +#include "boot.h" +#include "video.h" + +__videocard video_bios; + +/* Set a conventional BIOS mode */ +static int set_bios_mode(u8 mode); + +static int bios_set_mode(struct mode_info *mi) +{ + return set_bios_mode(mi->mode - VIDEO_FIRST_BIOS); +} + +static int set_bios_mode(u8 mode) +{ + u16 ax; + u8 new_mode; + + ax = mode; /* AH=0x00 Set Video Mode */ + asm volatile(INT10 + : "+a" (ax) + : : "ebx", "ecx", "edx", "esi", "edi"); + + ax = 0x0f00; /* Get Current Video Mode */ + asm volatile(INT10 + : "+a" (ax) + : : "ebx", "ecx", "edx", "esi", "edi"); + + do_restore = 1; /* Assume video contents was lost */ + new_mode = ax & 0x7f; /* Not all BIOSes are clean with the top bit */ + + if (new_mode == mode) + return 0; /* Mode change OK */ + + if (new_mode != boot_params.screen_info.orig_video_mode) { + /* Mode setting failed, but we didn't end up where we + started. That's bad. Try to revert to the original + video mode. */ + ax = boot_params.screen_info.orig_video_mode; + asm volatile(INT10 + : "+a" (ax) + : : "ebx", "ecx", "edx", "esi", "edi"); + } + return -1; +} + +static int bios_probe(void) +{ + u8 mode; + u8 saved_mode = boot_params.screen_info.orig_video_mode; + u16 crtc; + struct mode_info *mi; + int nmodes = 0; + + if (adapter != ADAPTER_EGA && adapter != ADAPTER_VGA) + return 0; + + set_fs(0); + crtc = vga_crtc(); + + video_bios.modes = GET_HEAP(struct mode_info, 0); + + for (mode = 0x14; mode <= 0x7f; mode++) { + if (heap_free() < sizeof(struct mode_info)) + break; + + if (mode_defined(VIDEO_FIRST_BIOS+mode)) + continue; + + if (set_bios_mode(mode)) + continue; + + /* Try to verify that it's a text mode. */ + + /* Attribute Controller: make graphics controller disabled */ + if (in_idx(0x3c0, 0x10) & 0x01) + continue; + + /* Graphics Controller: verify Alpha addressing enabled */ + if (in_idx(0x3ce, 0x06) & 0x01) + continue; + + /* CRTC cursor location low should be zero(?) */ + if (in_idx(crtc, 0x0f)) + continue; + + mi = GET_HEAP(struct mode_info, 1); + mi->mode = VIDEO_FIRST_BIOS+mode; + mi->x = rdfs16(0x44a); + mi->y = rdfs8(0x484)+1; + nmodes++; + } + + set_bios_mode(saved_mode); + + return nmodes; +} + +__videocard video_bios = +{ + .card_name = "BIOS (scanned)", + .probe = bios_probe, + .set_mode = bios_set_mode, + .unsafe = 1, + .xmode_first = VIDEO_FIRST_BIOS, + .xmode_n = 0x80, +}; diff --git a/arch/i386/boot/video-vesa.c b/arch/i386/boot/video-vesa.c new file mode 100644 index 000000000000..e6aa9eb8d93a --- /dev/null +++ b/arch/i386/boot/video-vesa.c @@ -0,0 +1,284 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/video-vesa.c + * + * VESA text modes + */ + +#include "boot.h" +#include "video.h" +#include "vesa.h" + +/* VESA information */ +static struct vesa_general_info vginfo; +static struct vesa_mode_info vminfo; + +__videocard video_vesa; + +static void vesa_store_mode_params_graphics(void); + +static int vesa_probe(void) +{ +#if defined(CONFIG_VIDEO_VESA) || defined(CONFIG_FIRMWARE_EDID) + u16 ax; + u16 mode; + addr_t mode_ptr; + struct mode_info *mi; + int nmodes = 0; + + video_vesa.modes = GET_HEAP(struct mode_info, 0); + + vginfo.signature = VBE2_MAGIC; + + /* Optimistically assume a VESA BIOS is register-clean... */ + ax = 0x4f00; + asm("int $0x10" : "+a" (ax), "=m" (vginfo) : "D" (&vginfo)); + + if (ax != 0x004f || + vginfo.signature != VESA_MAGIC || + vginfo.version < 0x0102) + return 0; /* Not present */ +#endif /* CONFIG_VIDEO_VESA || CONFIG_FIRMWARE_EDID */ +#ifdef CONFIG_VIDEO_VESA + set_fs(vginfo.video_mode_ptr.seg); + mode_ptr = vginfo.video_mode_ptr.off; + + while ((mode = rdfs16(mode_ptr)) != 0xffff) { + mode_ptr += 2; + + if (heap_free() < sizeof(struct mode_info)) + break; /* Heap full, can't save mode info */ + + if (mode & ~0x1ff) + continue; + + memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ + + ax = 0x4f01; + asm("int $0x10" + : "+a" (ax), "=m" (vminfo) + : "c" (mode), "D" (&vminfo)); + + if (ax != 0x004f) + continue; + + if ((vminfo.mode_attr & 0x15) == 0x05) { + /* Text Mode, TTY BIOS supported, + supported by hardware */ + mi = GET_HEAP(struct mode_info, 1); + mi->mode = mode + VIDEO_FIRST_VESA; + mi->x = vminfo.h_res; + mi->y = vminfo.v_res; + nmodes++; + } else if ((vminfo.mode_attr & 0x99) == 0x99) { +#ifdef CONFIG_FB + /* Graphics mode, color, linear frame buffer + supported -- register the mode but hide from + the menu. Only do this if framebuffer is + configured, however, otherwise the user will + be left without a screen. */ + mi = GET_HEAP(struct mode_info, 1); + mi->mode = mode + VIDEO_FIRST_VESA; + mi->x = mi->y = 0; + nmodes++; +#endif + } + } + + return nmodes; +#else + return 0; +#endif /* CONFIG_VIDEO_VESA */ +} + +static int vesa_set_mode(struct mode_info *mode) +{ + u16 ax; + int is_graphic; + u16 vesa_mode = mode->mode - VIDEO_FIRST_VESA; + + memset(&vminfo, 0, sizeof vminfo); /* Just in case... */ + + ax = 0x4f01; + asm("int $0x10" + : "+a" (ax), "=m" (vminfo) + : "c" (vesa_mode), "D" (&vminfo)); + + if (ax != 0x004f) + return -1; + + if ((vminfo.mode_attr & 0x15) == 0x05) { + /* It's a supported text mode */ + is_graphic = 0; + } else if ((vminfo.mode_attr & 0x99) == 0x99) { + /* It's a graphics mode with linear frame buffer */ + is_graphic = 1; + vesa_mode |= 0x4000; /* Request linear frame buffer */ + } else { + return -1; /* Invalid mode */ + } + + + ax = 0x4f02; + asm volatile("int $0x10" + : "+a" (ax) + : "b" (vesa_mode), "D" (0)); + + if (ax != 0x004f) + return -1; + + graphic_mode = is_graphic; + if (!is_graphic) { + /* Text mode */ + force_x = mode->x; + force_y = mode->y; + do_restore = 1; + } else { + /* Graphics mode */ + vesa_store_mode_params_graphics(); + } + + return 0; +} + + +/* Switch DAC to 8-bit mode */ +static void vesa_dac_set_8bits(void) +{ + u8 dac_size = 6; + + /* If possible, switch the DAC to 8-bit mode */ + if (vginfo.capabilities & 1) { + u16 ax, bx; + + ax = 0x4f08; + bx = 0x0800; + asm volatile(INT10 + : "+a" (ax), "+b" (bx) + : : "ecx", "edx", "esi", "edi"); + + if (ax == 0x004f) + dac_size = bx >> 8; + } + + /* Set the color sizes to the DAC size, and offsets to 0 */ + boot_params.screen_info.red_size = dac_size; + boot_params.screen_info.green_size = dac_size; + boot_params.screen_info.blue_size = dac_size; + boot_params.screen_info.rsvd_size = dac_size; + + boot_params.screen_info.red_pos = 0; + boot_params.screen_info.green_pos = 0; + boot_params.screen_info.blue_pos = 0; + boot_params.screen_info.rsvd_pos = 0; +} + +/* Save the VESA protected mode info */ +static void vesa_store_pm_info(void) +{ + u16 ax, bx, di, es; + + ax = 0x4f0a; + bx = di = 0; + asm("pushw %%es; "INT10"; movw %%es,%0; popw %%es" + : "=d" (es), "+a" (ax), "+b" (bx), "+D" (di) + : : "ecx", "esi"); + + if (ax != 0x004f) + return; + + boot_params.screen_info.vesapm_seg = es; + boot_params.screen_info.vesapm_off = di; +} + +/* + * Save video mode parameters for graphics mode + */ +static void vesa_store_mode_params_graphics(void) +{ + /* Tell the kernel we're in VESA graphics mode */ + boot_params.screen_info.orig_video_isVGA = 0x23; + + /* Mode parameters */ + boot_params.screen_info.vesa_attributes = vminfo.mode_attr; + boot_params.screen_info.lfb_linelength = vminfo.logical_scan; + boot_params.screen_info.lfb_width = vminfo.h_res; + boot_params.screen_info.lfb_height = vminfo.v_res; + boot_params.screen_info.lfb_depth = vminfo.bpp; + boot_params.screen_info.pages = vminfo.image_planes; + boot_params.screen_info.lfb_base = vminfo.lfb_ptr; + memcpy(&boot_params.screen_info.red_size, + &vminfo.rmask, 8); + + /* General parameters */ + boot_params.screen_info.lfb_size = vginfo.total_memory; + + if (vminfo.bpp <= 8) + vesa_dac_set_8bits(); + + vesa_store_pm_info(); +} + +/* + * Save EDID information for the kernel; this is invoked, separately, + * after mode-setting. + */ +void vesa_store_edid(void) +{ +#ifdef CONFIG_FIRMWARE_EDID + u16 ax, bx, cx, dx, di; + + /* Apparently used as a nonsense token... */ + memset(&boot_params.edid_info, 0x13, sizeof boot_params.edid_info); + + if (vginfo.version < 0x0200) + return; /* EDID requires VBE 2.0+ */ + + ax = 0x4f15; /* VBE DDC */ + bx = 0x0000; /* Report DDC capabilities */ + cx = 0; /* Controller 0 */ + di = 0; /* ES:DI must be 0 by spec */ + + /* Note: The VBE DDC spec is different from the main VESA spec; + we genuinely have to assume all registers are destroyed here. */ + + asm("pushw %%es; movw %2,%%es; "INT10"; popw %%es" + : "+a" (ax), "+b" (bx) + : "c" (cx), "D" (di) + : "esi"); + + if (ax != 0x004f) + return; /* No EDID */ + + /* BH = time in seconds to transfer EDD information */ + /* BL = DDC level supported */ + + ax = 0x4f15; /* VBE DDC */ + bx = 0x0001; /* Read EDID */ + cx = 0; /* Controller 0 */ + dx = 0; /* EDID block number */ + di =(size_t) &boot_params.edid_info; /* (ES:)Pointer to block */ + asm(INT10 + : "+a" (ax), "+b" (bx), "+d" (dx) + : "c" (cx), "D" (di) + : "esi"); +#endif /* CONFIG_FIRMWARE_EDID */ +} + +__videocard video_vesa = +{ + .card_name = "VESA", + .probe = vesa_probe, + .set_mode = vesa_set_mode, + .xmode_first = VIDEO_FIRST_VESA, + .xmode_n = 0x200, +}; diff --git a/arch/i386/boot/video-vga.c b/arch/i386/boot/video-vga.c new file mode 100644 index 000000000000..700d09a9c9b3 --- /dev/null +++ b/arch/i386/boot/video-vga.c @@ -0,0 +1,260 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/video-vga.c + * + * Common all-VGA modes + */ + +#include "boot.h" +#include "video.h" + +static struct mode_info vga_modes[] = { + { VIDEO_80x25, 80, 25 }, + { VIDEO_8POINT, 80, 50 }, + { VIDEO_80x43, 80, 43 }, + { VIDEO_80x28, 80, 28 }, + { VIDEO_80x30, 80, 30 }, + { VIDEO_80x34, 80, 34 }, + { VIDEO_80x60, 80, 60 }, +}; + +static struct mode_info ega_modes[] = { + { VIDEO_80x25, 80, 25 }, + { VIDEO_8POINT, 80, 43 }, +}; + +static struct mode_info cga_modes[] = { + { VIDEO_80x25, 80, 25 }, +}; + +__videocard video_vga; + +/* Set basic 80x25 mode */ +static u8 vga_set_basic_mode(void) +{ + u16 ax; + u8 rows; + u8 mode; + +#ifdef CONFIG_VIDEO_400_HACK + if (adapter >= ADAPTER_VGA) { + asm(INT10 + : : "a" (0x1202), "b" (0x0030) + : "ecx", "edx", "esi", "edi"); + } +#endif + + ax = 0x0f00; + asm(INT10 + : "+a" (ax) + : : "ebx", "ecx", "edx", "esi", "edi"); + + mode = (u8)ax; + + set_fs(0); + rows = rdfs8(0x484); /* rows minus one */ + +#ifndef CONFIG_VIDEO_400_HACK + if ((ax == 0x5003 || ax == 0x5007) && + (rows == 0 || rows == 24)) + return mode; +#endif + + if (mode != 3 && mode != 7) + mode = 3; + + /* Set the mode */ + asm volatile(INT10 + : : "a" (mode) + : "ebx", "ecx", "edx", "esi", "edi"); + do_restore = 1; + return mode; +} + +static void vga_set_8font(void) +{ + /* Set 8x8 font - 80x43 on EGA, 80x50 on VGA */ + + /* Set 8x8 font */ + asm volatile(INT10 : : "a" (0x1112), "b" (0)); + + /* Use alternate print screen */ + asm volatile(INT10 : : "a" (0x1200), "b" (0x20)); + + /* Turn off cursor emulation */ + asm volatile(INT10 : : "a" (0x1201), "b" (0x34)); + + /* Cursor is scan lines 6-7 */ + asm volatile(INT10 : : "a" (0x0100), "c" (0x0607)); +} + +static void vga_set_14font(void) +{ + /* Set 9x14 font - 80x28 on VGA */ + + /* Set 9x14 font */ + asm volatile(INT10 : : "a" (0x1111), "b" (0)); + + /* Turn off cursor emulation */ + asm volatile(INT10 : : "a" (0x1201), "b" (0x34)); + + /* Cursor is scan lines 11-12 */ + asm volatile(INT10 : : "a" (0x0100), "c" (0x0b0c)); +} + +static void vga_set_80x43(void) +{ + /* Set 80x43 mode on VGA (not EGA) */ + + /* Set 350 scans */ + asm volatile(INT10 : : "a" (0x1201), "b" (0x30)); + + /* Reset video mode */ + asm volatile(INT10 : : "a" (0x0003)); + + vga_set_8font(); +} + +/* I/O address of the VGA CRTC */ +u16 vga_crtc(void) +{ + return (inb(0x3cc) & 1) ? 0x3d4 : 0x3b4; +} + +static void vga_set_480_scanlines(int end) +{ + u16 crtc; + u8 csel; + + crtc = vga_crtc(); + + out_idx(0x0c, crtc, 0x11); /* Vertical sync end, unlock CR0-7 */ + out_idx(0x0b, crtc, 0x06); /* Vertical total */ + out_idx(0x3e, crtc, 0x07); /* Vertical overflow */ + out_idx(0xea, crtc, 0x10); /* Vertical sync start */ + out_idx(end, crtc, 0x12); /* Vertical display end */ + out_idx(0xe7, crtc, 0x15); /* Vertical blank start */ + out_idx(0x04, crtc, 0x16); /* Vertical blank end */ + csel = inb(0x3cc); + csel &= 0x0d; + csel |= 0xe2; + outb(csel, 0x3cc); +} + +static void vga_set_80x30(void) +{ + vga_set_480_scanlines(0xdf); +} + +static void vga_set_80x34(void) +{ + vga_set_14font(); + vga_set_480_scanlines(0xdb); +} + +static void vga_set_80x60(void) +{ + vga_set_8font(); + vga_set_480_scanlines(0xdf); +} + +static int vga_set_mode(struct mode_info *mode) +{ + /* Set the basic mode */ + vga_set_basic_mode(); + + /* Override a possibly broken BIOS */ + force_x = mode->x; + force_y = mode->y; + + switch (mode->mode) { + case VIDEO_80x25: + break; + case VIDEO_8POINT: + vga_set_8font(); + break; + case VIDEO_80x43: + vga_set_80x43(); + break; + case VIDEO_80x28: + vga_set_14font(); + break; + case VIDEO_80x30: + vga_set_80x30(); + break; + case VIDEO_80x34: + vga_set_80x34(); + break; + case VIDEO_80x60: + vga_set_80x60(); + break; + } + + return 0; +} + +/* + * Note: this probe includes basic information required by all + * systems. It should be executed first, by making sure + * video-vga.c is listed first in the Makefile. + */ +static int vga_probe(void) +{ + static const char *card_name[] = { + "CGA/MDA/HGC", "EGA", "VGA" + }; + static struct mode_info *mode_lists[] = { + cga_modes, + ega_modes, + vga_modes, + }; + static int mode_count[] = { + sizeof(cga_modes)/sizeof(struct mode_info), + sizeof(ega_modes)/sizeof(struct mode_info), + sizeof(vga_modes)/sizeof(struct mode_info), + }; + u8 vga_flag; + + asm(INT10 + : "=b" (boot_params.screen_info.orig_video_ega_bx) + : "a" (0x1200), "b" (0x10) /* Check EGA/VGA */ + : "ecx", "edx", "esi", "edi"); + + /* If we have MDA/CGA/HGC then BL will be unchanged at 0x10 */ + if ((u8)boot_params.screen_info.orig_video_ega_bx != 0x10) { + /* EGA/VGA */ + asm(INT10 + : "=a" (vga_flag) + : "a" (0x1a00) + : "ebx", "ecx", "edx", "esi", "edi"); + + if (vga_flag == 0x1a) { + adapter = ADAPTER_VGA; + boot_params.screen_info.orig_video_isVGA = 1; + } else { + adapter = ADAPTER_EGA; + } + } else { + adapter = ADAPTER_CGA; + } + + video_vga.modes = mode_lists[adapter]; + video_vga.card_name = card_name[adapter]; + return mode_count[adapter]; +} + +__videocard video_vga = +{ + .card_name = "VGA", + .probe = vga_probe, + .set_mode = vga_set_mode, +}; diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S deleted file mode 100644 index 8143c9516cb4..000000000000 --- a/arch/i386/boot/video.S +++ /dev/null @@ -1,2043 +0,0 @@ -/* video.S - * - * Display adapter & video mode setup, version 2.13 (14-May-99) - * - * Copyright (C) 1995 -- 1998 Martin Mares <mj@ucw.cz> - * Based on the original setup.S code (C) Linus Torvalds and Mats Anderson - * - * Rewritten to use GNU 'as' by Chris Noe <stiker@northlink.com> May 1999 - * - * For further information, look at Documentation/svga.txt. - * - */ - -/* Enable autodetection of SVGA adapters and modes. */ -#undef CONFIG_VIDEO_SVGA - -/* Enable autodetection of VESA modes */ -#define CONFIG_VIDEO_VESA - -/* Enable compacting of mode table */ -#define CONFIG_VIDEO_COMPACT - -/* Retain screen contents when switching modes */ -#define CONFIG_VIDEO_RETAIN - -/* Enable local mode list */ -#undef CONFIG_VIDEO_LOCAL - -/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */ -#undef CONFIG_VIDEO_400_HACK - -/* Hack that lets you force specific BIOS mode ID and specific dimensions */ -#undef CONFIG_VIDEO_GFX_HACK -#define VIDEO_GFX_BIOS_AX 0x4f02 /* 800x600 on ThinkPad */ -#define VIDEO_GFX_BIOS_BX 0x0102 -#define VIDEO_GFX_DUMMY_RESOLUTION 0x6425 /* 100x37 */ - -/* This code uses an extended set of video mode numbers. These include: - * Aliases for standard modes - * NORMAL_VGA (-1) - * EXTENDED_VGA (-2) - * ASK_VGA (-3) - * Video modes numbered by menu position -- NOT RECOMMENDED because of lack - * of compatibility when extending the table. These are between 0x00 and 0xff. - */ -#define VIDEO_FIRST_MENU 0x0000 - -/* Standard BIOS video modes (BIOS number + 0x0100) */ -#define VIDEO_FIRST_BIOS 0x0100 - -/* VESA BIOS video modes (VESA number + 0x0200) */ -#define VIDEO_FIRST_VESA 0x0200 - -/* Video7 special modes (BIOS number + 0x0900) */ -#define VIDEO_FIRST_V7 0x0900 - -/* Special video modes */ -#define VIDEO_FIRST_SPECIAL 0x0f00 -#define VIDEO_80x25 0x0f00 -#define VIDEO_8POINT 0x0f01 -#define VIDEO_80x43 0x0f02 -#define VIDEO_80x28 0x0f03 -#define VIDEO_CURRENT_MODE 0x0f04 -#define VIDEO_80x30 0x0f05 -#define VIDEO_80x34 0x0f06 -#define VIDEO_80x60 0x0f07 -#define VIDEO_GFX_HACK 0x0f08 -#define VIDEO_LAST_SPECIAL 0x0f09 - -/* Video modes given by resolution */ -#define VIDEO_FIRST_RESOLUTION 0x1000 - -/* The "recalculate timings" flag */ -#define VIDEO_RECALC 0x8000 - -/* Positions of various video parameters passed to the kernel */ -/* (see also include/linux/tty.h) */ -#define PARAM_CURSOR_POS 0x00 -#define PARAM_VIDEO_PAGE 0x04 -#define PARAM_VIDEO_MODE 0x06 -#define PARAM_VIDEO_COLS 0x07 -#define PARAM_VIDEO_EGA_BX 0x0a -#define PARAM_VIDEO_LINES 0x0e -#define PARAM_HAVE_VGA 0x0f -#define PARAM_FONT_POINTS 0x10 - -#define PARAM_LFB_WIDTH 0x12 -#define PARAM_LFB_HEIGHT 0x14 -#define PARAM_LFB_DEPTH 0x16 -#define PARAM_LFB_BASE 0x18 -#define PARAM_LFB_SIZE 0x1c -#define PARAM_LFB_LINELENGTH 0x24 -#define PARAM_LFB_COLORS 0x26 -#define PARAM_VESAPM_SEG 0x2e -#define PARAM_VESAPM_OFF 0x30 -#define PARAM_LFB_PAGES 0x32 -#define PARAM_VESA_ATTRIB 0x34 -#define PARAM_CAPABILITIES 0x36 - -/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ -#ifdef CONFIG_VIDEO_RETAIN -#define DO_STORE call store_screen -#else -#define DO_STORE -#endif /* CONFIG_VIDEO_RETAIN */ - -# This is the main entry point called by setup.S -# %ds *must* be pointing to the bootsector -video: pushw %ds # We use different segments - pushw %ds # FS contains original DS - popw %fs - pushw %cs # DS is equal to CS - popw %ds - pushw %cs # ES is equal to CS - popw %es - xorw %ax, %ax - movw %ax, %gs # GS is zero - cld - call basic_detect # Basic adapter type testing (EGA/VGA/MDA/CGA) -#ifdef CONFIG_VIDEO_SELECT - movw %fs:(0x01fa), %ax # User selected video mode - cmpw $ASK_VGA, %ax # Bring up the menu - jz vid2 - - call mode_set # Set the mode - jc vid1 - - leaw badmdt, %si # Invalid mode ID - call prtstr -vid2: call mode_menu -vid1: -#ifdef CONFIG_VIDEO_RETAIN - call restore_screen # Restore screen contents -#endif /* CONFIG_VIDEO_RETAIN */ - call store_edid -#endif /* CONFIG_VIDEO_SELECT */ - call mode_params # Store mode parameters - popw %ds # Restore original DS - ret - -# Detect if we have CGA, MDA, EGA or VGA and pass it to the kernel. -basic_detect: - movb $0, %fs:(PARAM_HAVE_VGA) - movb $0x12, %ah # Check EGA/VGA - movb $0x10, %bl - int $0x10 - movw %bx, %fs:(PARAM_VIDEO_EGA_BX) # Identifies EGA to the kernel - cmpb $0x10, %bl # No, it's a CGA/MDA/HGA card. - je basret - - incb adapter - movw $0x1a00, %ax # Check EGA or VGA? - int $0x10 - cmpb $0x1a, %al # 1a means VGA... - jne basret # anything else is EGA. - - incb %fs:(PARAM_HAVE_VGA) # We've detected a VGA - incb adapter -basret: ret - -# Store the video mode parameters for later usage by the kernel. -# This is done by asking the BIOS except for the rows/columns -# parameters in the default 80x25 mode -- these are set directly, -# because some very obscure BIOSes supply insane values. -mode_params: -#ifdef CONFIG_VIDEO_SELECT - cmpb $0, graphic_mode - jnz mopar_gr -#endif - movb $0x03, %ah # Read cursor position - xorb %bh, %bh - int $0x10 - movw %dx, %fs:(PARAM_CURSOR_POS) - movb $0x0f, %ah # Read page/mode/width - int $0x10 - movw %bx, %fs:(PARAM_VIDEO_PAGE) - movw %ax, %fs:(PARAM_VIDEO_MODE) # Video mode and screen width - cmpb $0x7, %al # MDA/HGA => segment differs - jnz mopar0 - - movw $0xb000, video_segment -mopar0: movw %gs:(0x485), %ax # Font size - movw %ax, %fs:(PARAM_FONT_POINTS) # (valid only on EGA/VGA) - movw force_size, %ax # Forced size? - orw %ax, %ax - jz mopar1 - - movb %ah, %fs:(PARAM_VIDEO_COLS) - movb %al, %fs:(PARAM_VIDEO_LINES) - ret - -mopar1: movb $25, %al - cmpb $0, adapter # If we are on CGA/MDA/HGA, the - jz mopar2 # screen must have 25 lines. - - movb %gs:(0x484), %al # On EGA/VGA, use the EGA+ BIOS - incb %al # location of max lines. -mopar2: movb %al, %fs:(PARAM_VIDEO_LINES) - ret - -#ifdef CONFIG_VIDEO_SELECT -# Fetching of VESA frame buffer parameters -mopar_gr: - leaw modelist+1024, %di - movb $0x23, %fs:(PARAM_HAVE_VGA) - movw 16(%di), %ax - movw %ax, %fs:(PARAM_LFB_LINELENGTH) - movw 18(%di), %ax - movw %ax, %fs:(PARAM_LFB_WIDTH) - movw 20(%di), %ax - movw %ax, %fs:(PARAM_LFB_HEIGHT) - movb 25(%di), %al - movb $0, %ah - movw %ax, %fs:(PARAM_LFB_DEPTH) - movb 29(%di), %al - movb $0, %ah - movw %ax, %fs:(PARAM_LFB_PAGES) - movl 40(%di), %eax - movl %eax, %fs:(PARAM_LFB_BASE) - movl 31(%di), %eax - movl %eax, %fs:(PARAM_LFB_COLORS) - movl 35(%di), %eax - movl %eax, %fs:(PARAM_LFB_COLORS+4) - movw 0(%di), %ax - movw %ax, %fs:(PARAM_VESA_ATTRIB) - -# get video mem size - leaw modelist+1024, %di - movw $0x4f00, %ax - int $0x10 - xorl %eax, %eax - movw 18(%di), %ax - movl %eax, %fs:(PARAM_LFB_SIZE) - -# store mode capabilities - movl 10(%di), %eax - movl %eax, %fs:(PARAM_CAPABILITIES) - -# switching the DAC to 8-bit is for <= 8 bpp only - movw %fs:(PARAM_LFB_DEPTH), %ax - cmpw $8, %ax - jg dac_done - -# get DAC switching capability - xorl %eax, %eax - movb 10(%di), %al - testb $1, %al - jz dac_set - -# attempt to switch DAC to 8-bit - movw $0x4f08, %ax - movw $0x0800, %bx - int $0x10 - cmpw $0x004f, %ax - jne dac_set - movb %bh, dac_size # store actual DAC size - -dac_set: -# set color size to DAC size - movb dac_size, %al - movb %al, %fs:(PARAM_LFB_COLORS+0) - movb %al, %fs:(PARAM_LFB_COLORS+2) - movb %al, %fs:(PARAM_LFB_COLORS+4) - movb %al, %fs:(PARAM_LFB_COLORS+6) - -# set color offsets to 0 - movb $0, %fs:(PARAM_LFB_COLORS+1) - movb $0, %fs:(PARAM_LFB_COLORS+3) - movb $0, %fs:(PARAM_LFB_COLORS+5) - movb $0, %fs:(PARAM_LFB_COLORS+7) - -dac_done: -# get protected mode interface informations - movw $0x4f0a, %ax - xorw %bx, %bx - xorw %di, %di - int $0x10 - cmp $0x004f, %ax - jnz no_pm - - movw %es, %fs:(PARAM_VESAPM_SEG) - movw %di, %fs:(PARAM_VESAPM_OFF) -no_pm: ret - -# The video mode menu -mode_menu: - leaw keymsg, %si # "Return/Space/Timeout" message - call prtstr - call flush -nokey: call getkt - - cmpb $0x0d, %al # ENTER ? - je listm # yes - manual mode selection - - cmpb $0x20, %al # SPACE ? - je defmd1 # no - repeat - - call beep - jmp nokey - -defmd1: ret # No mode chosen? Default 80x25 - -listm: call mode_table # List mode table -listm0: leaw name_bann, %si # Print adapter name - call prtstr - movw card_name, %si - orw %si, %si - jnz an2 - - movb adapter, %al - leaw old_name, %si - orb %al, %al - jz an1 - - leaw ega_name, %si - decb %al - jz an1 - - leaw vga_name, %si - jmp an1 - -an2: call prtstr - leaw svga_name, %si -an1: call prtstr - leaw listhdr, %si # Table header - call prtstr - movb $0x30, %dl # DL holds mode number - leaw modelist, %si -lm1: cmpw $ASK_VGA, (%si) # End? - jz lm2 - - movb %dl, %al # Menu selection number - call prtchr - call prtsp2 - lodsw - call prthw # Mode ID - call prtsp2 - movb 0x1(%si), %al - call prtdec # Rows - movb $0x78, %al # the letter 'x' - call prtchr - lodsw - call prtdec # Columns - movb $0x0d, %al # New line - call prtchr - movb $0x0a, %al - call prtchr - incb %dl # Next character - cmpb $0x3a, %dl - jnz lm1 - - movb $0x61, %dl - jmp lm1 - -lm2: leaw prompt, %si # Mode prompt - call prtstr - leaw edit_buf, %di # Editor buffer -lm3: call getkey - cmpb $0x0d, %al # Enter? - jz lment - - cmpb $0x08, %al # Backspace? - jz lmbs - - cmpb $0x20, %al # Printable? - jc lm3 - - cmpw $edit_buf+4, %di # Enough space? - jz lm3 - - stosb - call prtchr - jmp lm3 - -lmbs: cmpw $edit_buf, %di # Backspace - jz lm3 - - decw %di - movb $0x08, %al - call prtchr - call prtspc - movb $0x08, %al - call prtchr - jmp lm3 - -lment: movb $0, (%di) - leaw crlft, %si - call prtstr - leaw edit_buf, %si - cmpb $0, (%si) # Empty string = default mode - jz lmdef - - cmpb $0, 1(%si) # One character = menu selection - jz mnusel - - cmpw $0x6373, (%si) # "scan" => mode scanning - jnz lmhx - - cmpw $0x6e61, 2(%si) - jz lmscan - -lmhx: xorw %bx, %bx # Else => mode ID in hex -lmhex: lodsb - orb %al, %al - jz lmuse1 - - subb $0x30, %al - jc lmbad - - cmpb $10, %al - jc lmhx1 - - subb $7, %al - andb $0xdf, %al - cmpb $10, %al - jc lmbad - - cmpb $16, %al - jnc lmbad - -lmhx1: shlw $4, %bx - orb %al, %bl - jmp lmhex - -lmuse1: movw %bx, %ax - jmp lmuse - -mnusel: lodsb # Menu selection - xorb %ah, %ah - subb $0x30, %al - jc lmbad - - cmpb $10, %al - jc lmuse - - cmpb $0x61-0x30, %al - jc lmbad - - subb $0x61-0x30-10, %al - cmpb $36, %al - jnc lmbad - -lmuse: call mode_set - jc lmdef - -lmbad: leaw unknt, %si - call prtstr - jmp lm2 -lmscan: cmpb $0, adapter # Scanning only on EGA/VGA - jz lmbad - - movw $0, mt_end # Scanning of modes is - movb $1, scanning # done as new autodetection. - call mode_table - jmp listm0 -lmdef: ret - -# Additional parts of mode_set... (relative jumps, you know) -setv7: # Video7 extended modes - DO_STORE - subb $VIDEO_FIRST_V7>>8, %bh - movw $0x6f05, %ax - int $0x10 - stc - ret - -_setrec: jmp setrec # Ugly... -_set_80x25: jmp set_80x25 - -# Aliases for backward compatibility. -setalias: - movw $VIDEO_80x25, %ax - incw %bx - jz mode_set - - movb $VIDEO_8POINT-VIDEO_FIRST_SPECIAL, %al - incw %bx - jnz setbad # Fall-through! - -# Setting of user mode (AX=mode ID) => CF=success -mode_set: - movw %ax, %fs:(0x01fa) # Store mode for use in acpi_wakeup.S - movw %ax, %bx - cmpb $0xff, %ah - jz setalias - - testb $VIDEO_RECALC>>8, %ah - jnz _setrec - - cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah - jnc setres - - cmpb $VIDEO_FIRST_SPECIAL>>8, %ah - jz setspc - - cmpb $VIDEO_FIRST_V7>>8, %ah - jz setv7 - - cmpb $VIDEO_FIRST_VESA>>8, %ah - jnc check_vesa - - orb %ah, %ah - jz setmenu - - decb %ah - jz setbios - -setbad: clc - movb $0, do_restore # The screen needn't be restored - ret - -setvesa: - DO_STORE - subb $VIDEO_FIRST_VESA>>8, %bh - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz setbad # AH=0 if OK - - stc - ret - -setbios: - DO_STORE - int $0x10 # Standard BIOS mode set call - pushw %bx - movb $0x0f, %ah # Check if really set - int $0x10 - popw %bx - cmpb %bl, %al - jnz setbad - - stc - ret - -setspc: xorb %bh, %bh # Set special mode - cmpb $VIDEO_LAST_SPECIAL-VIDEO_FIRST_SPECIAL, %bl - jnc setbad - - addw %bx, %bx - jmp *spec_inits(%bx) - -setmenu: - orb %al, %al # 80x25 is an exception - jz _set_80x25 - - pushw %bx # Set mode chosen from menu - call mode_table # Build the mode table - popw %ax - shlw $2, %ax - addw %ax, %si - cmpw %di, %si - jnc setbad - - movw (%si), %ax # Fetch mode ID -_m_s: jmp mode_set - -setres: pushw %bx # Set mode chosen by resolution - call mode_table - popw %bx - xchgb %bl, %bh -setr1: lodsw - cmpw $ASK_VGA, %ax # End of the list? - jz setbad - - lodsw - cmpw %bx, %ax - jnz setr1 - - movw -4(%si), %ax # Fetch mode ID - jmp _m_s - -check_vesa: -#ifdef CONFIG_FIRMWARE_EDID - leaw modelist+1024, %di - movw $0x4f00, %ax - int $0x10 - cmpw $0x004f, %ax - jnz setbad - - movw 4(%di), %ax - movw %ax, vbe_version -#endif - leaw modelist+1024, %di - subb $VIDEO_FIRST_VESA>>8, %bh - movw %bx, %cx # Get mode information structure - movw $0x4f01, %ax - int $0x10 - addb $VIDEO_FIRST_VESA>>8, %bh - cmpw $0x004f, %ax - jnz setbad - - movb (%di), %al # Check capabilities. - andb $0x19, %al - cmpb $0x09, %al - jz setvesa # This is a text mode - - movb (%di), %al # Check capabilities. - andb $0x99, %al - cmpb $0x99, %al - jnz _setbad # Doh! No linear frame buffer. - - subb $VIDEO_FIRST_VESA>>8, %bh - orw $0x4000, %bx # Use linear frame buffer - movw $0x4f02, %ax # VESA BIOS mode set call - int $0x10 - cmpw $0x004f, %ax # AL=4f if implemented - jnz _setbad # AH=0 if OK - - movb $1, graphic_mode # flag graphic mode - movb $0, do_restore # no screen restore - stc - ret - -_setbad: jmp setbad # Ugly... - -# Recalculate vertical display end registers -- this fixes various -# inconsistencies of extended modes on many adapters. Called when -# the VIDEO_RECALC flag is set in the mode ID. - -setrec: subb $VIDEO_RECALC>>8, %ah # Set the base mode - call mode_set - jnc rct3 - - movw %gs:(0x485), %ax # Font size in pixels - movb %gs:(0x484), %bl # Number of rows - incb %bl - mulb %bl # Number of visible - decw %ax # scan lines - 1 - movw $0x3d4, %dx - movw %ax, %bx - movb $0x12, %al # Lower 8 bits - movb %bl, %ah - outw %ax, %dx - movb $0x07, %al # Bits 8 and 9 in the overflow register - call inidx - xchgb %al, %ah - andb $0xbd, %ah - shrb %bh - jnc rct1 - orb $0x02, %ah -rct1: shrb %bh - jnc rct2 - orb $0x40, %ah -rct2: movb $0x07, %al - outw %ax, %dx - stc -rct3: ret - -# Table of routines for setting of the special modes. -spec_inits: - .word set_80x25 - .word set_8pixel - .word set_80x43 - .word set_80x28 - .word set_current - .word set_80x30 - .word set_80x34 - .word set_80x60 - .word set_gfx - -# Set the 80x25 mode. If already set, do nothing. -set_80x25: - movw $0x5019, force_size # Override possibly broken BIOS -use_80x25: -#ifdef CONFIG_VIDEO_400_HACK - movw $0x1202, %ax # Force 400 scan lines - movb $0x30, %bl - int $0x10 -#else - movb $0x0f, %ah # Get current mode ID - int $0x10 - cmpw $0x5007, %ax # Mode 7 (80x25 mono) is the only one available - jz st80 # on CGA/MDA/HGA and is also available on EGAM - - cmpw $0x5003, %ax # Unknown mode, force 80x25 color - jnz force3 - -st80: cmpb $0, adapter # CGA/MDA/HGA => mode 3/7 is always 80x25 - jz set80 - - movb %gs:(0x0484), %al # This is EGA+ -- beware of 80x50 etc. - orb %al, %al # Some buggy BIOS'es set 0 rows - jz set80 - - cmpb $24, %al # It's hopefully correct - jz set80 -#endif /* CONFIG_VIDEO_400_HACK */ -force3: DO_STORE - movw $0x0003, %ax # Forced set - int $0x10 -set80: stc - ret - -# Set the 80x50/80x43 8-pixel mode. Simple BIOS calls. -set_8pixel: - DO_STORE - call use_80x25 # The base is 80x25 -set_8pt: - movw $0x1112, %ax # Use 8x8 font - xorb %bl, %bl - int $0x10 - movw $0x1200, %ax # Use alternate print screen - movb $0x20, %bl - int $0x10 - movw $0x1201, %ax # Turn off cursor emulation - movb $0x34, %bl - int $0x10 - movb $0x01, %ah # Define cursor scan lines 6-7 - movw $0x0607, %cx - int $0x10 -set_current: - stc - ret - -# Set the 80x28 mode. This mode works on all VGA's, because it's a standard -# 80x25 mode with 14-point fonts instead of 16-point. -set_80x28: - DO_STORE - call use_80x25 # The base is 80x25 -set14: movw $0x1111, %ax # Use 9x14 font - xorb %bl, %bl - int $0x10 - movb $0x01, %ah # Define cursor scan lines 11-12 - movw $0x0b0c, %cx - int $0x10 - stc - ret - -# Set the 80x43 mode. This mode is works on all VGA's. -# It's a 350-scanline mode with 8-pixel font. -set_80x43: - DO_STORE - movw $0x1201, %ax # Set 350 scans - movb $0x30, %bl - int $0x10 - movw $0x0003, %ax # Reset video mode - int $0x10 - jmp set_8pt # Use 8-pixel font - -# Set the 80x30 mode (all VGA's). 480 scanlines, 16-pixel font. -set_80x30: - call use_80x25 # Start with real 80x25 - DO_STORE - movw $0x3cc, %dx # Get CRTC port - inb %dx, %al - movb $0xd4, %dl - rorb %al # Mono or color? - jc set48a - - movb $0xb4, %dl -set48a: movw $0x0c11, %ax # Vertical sync end (also unlocks CR0-7) - call outidx - movw $0x0b06, %ax # Vertical total - call outidx - movw $0x3e07, %ax # (Vertical) overflow - call outidx - movw $0xea10, %ax # Vertical sync start - call outidx - movw $0xdf12, %ax # Vertical display end - call outidx - movw $0xe715, %ax # Vertical blank start - call outidx - movw $0x0416, %ax # Vertical blank end - call outidx - pushw %dx - movb $0xcc, %dl # Misc output register (read) - inb %dx, %al - movb $0xc2, %dl # (write) - andb $0x0d, %al # Preserve clock select bits and color bit - orb $0xe2, %al # Set correct sync polarity - outb %al, %dx - popw %dx - movw $0x501e, force_size - stc # That's all. - ret - -# Set the 80x34 mode (all VGA's). 480 scans, 14-pixel font. -set_80x34: - call set_80x30 # Set 480 scans - call set14 # And 14-pt font - movw $0xdb12, %ax # VGA vertical display end - movw $0x5022, force_size -setvde: call outidx - stc - ret - -# Set the 80x60 mode (all VGA's). 480 scans, 8-pixel font. -set_80x60: - call set_80x30 # Set 480 scans - call set_8pt # And 8-pt font - movw $0xdf12, %ax # VGA vertical display end - movw $0x503c, force_size - jmp setvde - -# Special hack for ThinkPad graphics -set_gfx: -#ifdef CONFIG_VIDEO_GFX_HACK - movw $VIDEO_GFX_BIOS_AX, %ax - movw $VIDEO_GFX_BIOS_BX, %bx - int $0x10 - movw $VIDEO_GFX_DUMMY_RESOLUTION, force_size - stc -#endif - ret - -#ifdef CONFIG_VIDEO_RETAIN - -# Store screen contents to temporary buffer. -store_screen: - cmpb $0, do_restore # Already stored? - jnz stsr - - testb $CAN_USE_HEAP, loadflags # Have we space for storing? - jz stsr - - pushw %ax - pushw %bx - pushw force_size # Don't force specific size - movw $0, force_size - call mode_params # Obtain params of current mode - popw force_size - movb %fs:(PARAM_VIDEO_LINES), %ah - movb %fs:(PARAM_VIDEO_COLS), %al - movw %ax, %bx # BX=dimensions - mulb %ah - movw %ax, %cx # CX=number of characters - addw %ax, %ax # Calculate image size - addw $modelist+1024+4, %ax - cmpw heap_end_ptr, %ax - jnc sts1 # Unfortunately, out of memory - - movw %fs:(PARAM_CURSOR_POS), %ax # Store mode params - leaw modelist+1024, %di - stosw - movw %bx, %ax - stosw - pushw %ds # Store the screen - movw video_segment, %ds - xorw %si, %si - rep - movsw - popw %ds - incb do_restore # Screen will be restored later -sts1: popw %bx - popw %ax -stsr: ret - -# Restore screen contents from temporary buffer. -restore_screen: - cmpb $0, do_restore # Has the screen been stored? - jz res1 - - call mode_params # Get parameters of current mode - movb %fs:(PARAM_VIDEO_LINES), %cl - movb %fs:(PARAM_VIDEO_COLS), %ch - leaw modelist+1024, %si # Screen buffer - lodsw # Set cursor position - movw %ax, %dx - cmpb %cl, %dh - jc res2 - - movb %cl, %dh - decb %dh -res2: cmpb %ch, %dl - jc res3 - - movb %ch, %dl - decb %dl -res3: movb $0x02, %ah - movb $0x00, %bh - int $0x10 - lodsw # Display size - movb %ah, %dl # DL=number of lines - movb $0, %ah # BX=phys. length of orig. line - movw %ax, %bx - cmpb %cl, %dl # Too many? - jc res4 - - pushw %ax - movb %dl, %al - subb %cl, %al - mulb %bl - addw %ax, %si - addw %ax, %si - popw %ax - movb %cl, %dl -res4: cmpb %ch, %al # Too wide? - jc res5 - - movb %ch, %al # AX=width of src. line -res5: movb $0, %cl - xchgb %ch, %cl - movw %cx, %bp # BP=width of dest. line - pushw %es - movw video_segment, %es - xorw %di, %di # Move the data - addw %bx, %bx # Convert BX and BP to _bytes_ - addw %bp, %bp -res6: pushw %si - pushw %di - movw %ax, %cx - rep - movsw - popw %di - popw %si - addw %bp, %di - addw %bx, %si - decb %dl - jnz res6 - - popw %es # Done -res1: ret -#endif /* CONFIG_VIDEO_RETAIN */ - -# Write to indexed VGA register (AL=index, AH=data, DX=index reg. port) -outidx: outb %al, %dx - pushw %ax - movb %ah, %al - incw %dx - outb %al, %dx - decw %dx - popw %ax - ret - -# Build the table of video modes (stored after the setup.S code at the -# `modelist' label. Each video mode record looks like: -# .word MODE-ID (our special mode ID (see above)) -# .byte rows (number of rows) -# .byte columns (number of columns) -# Returns address of the end of the table in DI, the end is marked -# with a ASK_VGA ID. -mode_table: - movw mt_end, %di # Already filled? - orw %di, %di - jnz mtab1x - - leaw modelist, %di # Store standard modes: - movl $VIDEO_80x25 + 0x50190000, %eax # The 80x25 mode (ALL) - stosl - movb adapter, %al # CGA/MDA/HGA -- no more modes - orb %al, %al - jz mtabe - - decb %al - jnz mtabv - - movl $VIDEO_8POINT + 0x502b0000, %eax # The 80x43 EGA mode - stosl - jmp mtabe - -mtab1x: jmp mtab1 - -mtabv: leaw vga_modes, %si # All modes for std VGA - movw $vga_modes_end-vga_modes, %cx - rep # I'm unable to use movsw as I don't know how to store a half - movsb # of the expression above to cx without using explicit shr. - - cmpb $0, scanning # Mode scan requested? - jz mscan1 - - call mode_scan -mscan1: - -#ifdef CONFIG_VIDEO_LOCAL - call local_modes -#endif /* CONFIG_VIDEO_LOCAL */ - -#ifdef CONFIG_VIDEO_VESA - call vesa_modes # Detect VESA VGA modes -#endif /* CONFIG_VIDEO_VESA */ - -#ifdef CONFIG_VIDEO_SVGA - cmpb $0, scanning # Bypass when scanning - jnz mscan2 - - call svga_modes # Detect SVGA cards & modes -mscan2: -#endif /* CONFIG_VIDEO_SVGA */ - -mtabe: - -#ifdef CONFIG_VIDEO_COMPACT - leaw modelist, %si - movw %di, %dx - movw %si, %di -cmt1: cmpw %dx, %si # Scan all modes - jz cmt2 - - leaw modelist, %bx # Find in previous entries - movw 2(%si), %cx -cmt3: cmpw %bx, %si - jz cmt4 - - cmpw 2(%bx), %cx # Found => don't copy this entry - jz cmt5 - - addw $4, %bx - jmp cmt3 - -cmt4: movsl # Copy entry - jmp cmt1 - -cmt5: addw $4, %si # Skip entry - jmp cmt1 - -cmt2: -#endif /* CONFIG_VIDEO_COMPACT */ - - movw $ASK_VGA, (%di) # End marker - movw %di, mt_end -mtab1: leaw modelist, %si # SI=mode list, DI=list end -ret0: ret - -# Modes usable on all standard VGAs -vga_modes: - .word VIDEO_8POINT - .word 0x5032 # 80x50 - .word VIDEO_80x43 - .word 0x502b # 80x43 - .word VIDEO_80x28 - .word 0x501c # 80x28 - .word VIDEO_80x30 - .word 0x501e # 80x30 - .word VIDEO_80x34 - .word 0x5022 # 80x34 - .word VIDEO_80x60 - .word 0x503c # 80x60 -#ifdef CONFIG_VIDEO_GFX_HACK - .word VIDEO_GFX_HACK - .word VIDEO_GFX_DUMMY_RESOLUTION -#endif - -vga_modes_end: -# Detect VESA modes. - -#ifdef CONFIG_VIDEO_VESA -vesa_modes: - cmpb $2, adapter # VGA only - jnz ret0 - - movw %di, %bp # BP=original mode table end - addw $0x200, %di # Buffer space - movw $0x4f00, %ax # VESA Get card info call - int $0x10 - movw %bp, %di - cmpw $0x004f, %ax # Successful? - jnz ret0 - - cmpw $0x4556, 0x200(%di) - jnz ret0 - - cmpw $0x4153, 0x202(%di) - jnz ret0 - - movw $vesa_name, card_name # Set name to "VESA VGA" - pushw %gs - lgsw 0x20e(%di), %si # GS:SI=mode list - movw $128, %cx # Iteration limit -vesa1: -# gas version 2.9.1, using BFD version 2.9.1.0.23 buggers the next inst. -# XXX: lodsw %gs:(%si), %ax # Get next mode in the list - gs; lodsw - cmpw $0xffff, %ax # End of the table? - jz vesar - - cmpw $0x0080, %ax # Check validity of mode ID - jc vesa2 - - orb %ah, %ah # Valid IDs: 0x0000-0x007f/0x0100-0x07ff - jz vesan # Certain BIOSes report 0x80-0xff! - - cmpw $0x0800, %ax - jnc vesae - -vesa2: pushw %cx - movw %ax, %cx # Get mode information structure - movw $0x4f01, %ax - int $0x10 - movw %cx, %bx # BX=mode number - addb $VIDEO_FIRST_VESA>>8, %bh - popw %cx - cmpw $0x004f, %ax - jnz vesan # Don't report errors (buggy BIOSES) - - movb (%di), %al # Check capabilities. We require - andb $0x19, %al # a color text mode. - cmpb $0x09, %al - jnz vesan - - cmpw $0xb800, 8(%di) # Standard video memory address required - jnz vesan - - testb $2, (%di) # Mode characteristics supplied? - movw %bx, (%di) # Store mode number - jz vesa3 - - xorw %dx, %dx - movw 0x12(%di), %bx # Width - orb %bh, %bh - jnz vesan - - movb %bl, 0x3(%di) - movw 0x14(%di), %ax # Height - orb %ah, %ah - jnz vesan - - movb %al, 2(%di) - mulb %bl - cmpw $8193, %ax # Small enough for Linux console driver? - jnc vesan - - jmp vesaok - -vesa3: subw $0x8108, %bx # This mode has no detailed info specified, - jc vesan # so it must be a standard VESA mode. - - cmpw $5, %bx - jnc vesan - - movw vesa_text_mode_table(%bx), %ax - movw %ax, 2(%di) -vesaok: addw $4, %di # The mode is valid. Store it. -vesan: loop vesa1 # Next mode. Limit exceeded => error -vesae: leaw vesaer, %si - call prtstr - movw %bp, %di # Discard already found modes. -vesar: popw %gs - ret - -# Dimensions of standard VESA text modes -vesa_text_mode_table: - .byte 60, 80 # 0108 - .byte 25, 132 # 0109 - .byte 43, 132 # 010A - .byte 50, 132 # 010B - .byte 60, 132 # 010C -#endif /* CONFIG_VIDEO_VESA */ - -# Scan for video modes. A bit dirty, but should work. -mode_scan: - movw $0x0100, %cx # Start with mode 0 -scm1: movb $0, %ah # Test the mode - movb %cl, %al - int $0x10 - movb $0x0f, %ah - int $0x10 - cmpb %cl, %al - jnz scm2 # Mode not set - - movw $0x3c0, %dx # Test if it's a text mode - movb $0x10, %al # Mode bits - call inidx - andb $0x03, %al - jnz scm2 - - movb $0xce, %dl # Another set of mode bits - movb $0x06, %al - call inidx - shrb %al - jc scm2 - - movb $0xd4, %dl # Cursor location - movb $0x0f, %al - call inidx - orb %al, %al - jnz scm2 - - movw %cx, %ax # Ok, store the mode - stosw - movb %gs:(0x484), %al # Number of rows - incb %al - stosb - movw %gs:(0x44a), %ax # Number of columns - stosb -scm2: incb %cl - jns scm1 - - movw $0x0003, %ax # Return back to mode 3 - int $0x10 - ret - -tstidx: outw %ax, %dx # OUT DX,AX and inidx -inidx: outb %al, %dx # Read from indexed VGA register - incw %dx # AL=index, DX=index reg port -> AL=data - inb %dx, %al - decw %dx - ret - -# Try to detect type of SVGA card and supply (usually approximate) video -# mode table for it. - -#ifdef CONFIG_VIDEO_SVGA -svga_modes: - leaw svga_table, %si # Test all known SVGA adapters -dosvga: lodsw - movw %ax, %bp # Default mode table - orw %ax, %ax - jz didsv1 - - lodsw # Pointer to test routine - pushw %si - pushw %di - pushw %es - movw $0xc000, %bx - movw %bx, %es - call *%ax # Call test routine - popw %es - popw %di - popw %si - orw %bp, %bp - jz dosvga - - movw %bp, %si # Found, copy the modes - movb svga_prefix, %ah -cpsvga: lodsb - orb %al, %al - jz didsv - - stosw - movsw - jmp cpsvga - -didsv: movw %si, card_name # Store pointer to card name -didsv1: ret - -# Table of all known SVGA cards. For each card, we store a pointer to -# a table of video modes supported by the card and a pointer to a routine -# used for testing of presence of the card. The video mode table is always -# followed by the name of the card or the chipset. -svga_table: - .word ati_md, ati_test - .word oak_md, oak_test - .word paradise_md, paradise_test - .word realtek_md, realtek_test - .word s3_md, s3_test - .word chips_md, chips_test - .word video7_md, video7_test - .word cirrus5_md, cirrus5_test - .word cirrus6_md, cirrus6_test - .word cirrus1_md, cirrus1_test - .word ahead_md, ahead_test - .word everex_md, everex_test - .word genoa_md, genoa_test - .word trident_md, trident_test - .word tseng_md, tseng_test - .word 0 - -# Test routines and mode tables: - -# S3 - The test algorithm was taken from the SuperProbe package -# for XFree86 1.2.1. Report bugs to Christoph.Niemann@linux.org -s3_test: - movw $0x0f35, %cx # we store some constants in cl/ch - movw $0x03d4, %dx - movb $0x38, %al - call inidx - movb %al, %bh # store current CRT-register 0x38 - movw $0x0038, %ax - call outidx # disable writing to special regs - movb %cl, %al # check whether we can write special reg 0x35 - call inidx - movb %al, %bl # save the current value of CRT reg 0x35 - andb $0xf0, %al # clear bits 0-3 - movb %al, %ah - movb %cl, %al # and write it to CRT reg 0x35 - call outidx - call inidx # now read it back - andb %ch, %al # clear the upper 4 bits - jz s3_2 # the first test failed. But we have a - - movb %bl, %ah # second chance - movb %cl, %al - call outidx - jmp s3_1 # do the other tests - -s3_2: movw %cx, %ax # load ah with 0xf and al with 0x35 - orb %bl, %ah # set the upper 4 bits of ah with the orig value - call outidx # write ... - call inidx # ... and reread - andb %cl, %al # turn off the upper 4 bits - pushw %ax - movb %bl, %ah # restore old value in register 0x35 - movb %cl, %al - call outidx - popw %ax - cmpb %ch, %al # setting lower 4 bits was successful => bad - je no_s3 # writing is allowed => this is not an S3 - -s3_1: movw $0x4838, %ax # allow writing to special regs by putting - call outidx # magic number into CRT-register 0x38 - movb %cl, %al # check whether we can write special reg 0x35 - call inidx - movb %al, %bl - andb $0xf0, %al - movb %al, %ah - movb %cl, %al - call outidx - call inidx - andb %ch, %al - jnz no_s3 # no, we can't write => no S3 - - movw %cx, %ax - orb %bl, %ah - call outidx - call inidx - andb %ch, %al - pushw %ax - movb %bl, %ah # restore old value in register 0x35 - movb %cl, %al - call outidx - popw %ax - cmpb %ch, %al - jne no_s31 # writing not possible => no S3 - movb $0x30, %al - call inidx # now get the S3 id ... - leaw idS3, %di - movw $0x10, %cx - repne - scasb - je no_s31 - - movb %bh, %ah - movb $0x38, %al - jmp s3rest - -no_s3: movb $0x35, %al # restore CRT register 0x35 - movb %bl, %ah - call outidx -no_s31: xorw %bp, %bp # Detection failed -s3rest: movb %bh, %ah - movb $0x38, %al # restore old value of CRT register 0x38 - jmp outidx - -idS3: .byte 0x81, 0x82, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95 - .byte 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa8, 0xb0 - -s3_md: .byte 0x54, 0x2b, 0x84 - .byte 0x55, 0x19, 0x84 - .byte 0 - .ascii "S3" - .byte 0 - -# ATI cards. -ati_test: - leaw idati, %si - movw $0x31, %di - movw $0x09, %cx - repe - cmpsb - je atiok - - xorw %bp, %bp -atiok: ret - -idati: .ascii "761295520" - -ati_md: .byte 0x23, 0x19, 0x84 - .byte 0x33, 0x2c, 0x84 - .byte 0x22, 0x1e, 0x64 - .byte 0x21, 0x19, 0x64 - .byte 0x58, 0x21, 0x50 - .byte 0x5b, 0x1e, 0x50 - .byte 0 - .ascii "ATI" - .byte 0 - -# AHEAD -ahead_test: - movw $0x200f, %ax - movw $0x3ce, %dx - outw %ax, %dx - incw %dx - inb %dx, %al - cmpb $0x20, %al - je isahed - - cmpb $0x21, %al - je isahed - - xorw %bp, %bp -isahed: ret - -ahead_md: - .byte 0x22, 0x2c, 0x84 - .byte 0x23, 0x19, 0x84 - .byte 0x24, 0x1c, 0x84 - .byte 0x2f, 0x32, 0xa0 - .byte 0x32, 0x22, 0x50 - .byte 0x34, 0x42, 0x50 - .byte 0 - .ascii "Ahead" - .byte 0 - -# Chips & Tech. -chips_test: - movw $0x3c3, %dx - inb %dx, %al - orb $0x10, %al - outb %al, %dx - movw $0x104, %dx - inb %dx, %al - movb %al, %bl - movw $0x3c3, %dx - inb %dx, %al - andb $0xef, %al - outb %al, %dx - cmpb $0xa5, %bl - je cantok - - xorw %bp, %bp -cantok: ret - -chips_md: - .byte 0x60, 0x19, 0x84 - .byte 0x61, 0x32, 0x84 - .byte 0 - .ascii "Chips & Technologies" - .byte 0 - -# Cirrus Logic 5X0 -cirrus1_test: - movw $0x3d4, %dx - movb $0x0c, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bl - xorb %al, %al - outb %al, %dx - decw %dx - movb $0x1f, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bh - xorb %ah, %ah - shlb $4, %al - movw %ax, %cx - movb %bh, %al - shrb $4, %al - addw %ax, %cx - shlw $8, %cx - addw $6, %cx - movw %cx, %ax - movw $0x3c4, %dx - outw %ax, %dx - incw %dx - inb %dx, %al - andb %al, %al - jnz nocirr - - movb %bh, %al - outb %al, %dx - inb %dx, %al - cmpb $0x01, %al - je iscirr - -nocirr: xorw %bp, %bp -iscirr: movw $0x3d4, %dx - movb %bl, %al - xorb %ah, %ah - shlw $8, %ax - addw $0x0c, %ax - outw %ax, %dx - ret - -cirrus1_md: - .byte 0x1f, 0x19, 0x84 - .byte 0x20, 0x2c, 0x84 - .byte 0x22, 0x1e, 0x84 - .byte 0x31, 0x25, 0x64 - .byte 0 - .ascii "Cirrus Logic 5X0" - .byte 0 - -# Cirrus Logic 54XX -cirrus5_test: - movw $0x3c4, %dx - movb $6, %al - call inidx - movb %al, %bl # BL=backup - movw $6, %ax - call tstidx - cmpb $0x0f, %al - jne c5fail - - movw $0x1206, %ax - call tstidx - cmpb $0x12, %al - jne c5fail - - movb $0x1e, %al - call inidx - movb %al, %bh - movb %bh, %ah - andb $0xc0, %ah - movb $0x1e, %al - call tstidx - andb $0x3f, %al - jne c5xx - - movb $0x1e, %al - movb %bh, %ah - orb $0x3f, %ah - call tstidx - xorb $0x3f, %al - andb $0x3f, %al -c5xx: pushf - movb $0x1e, %al - movb %bh, %ah - outw %ax, %dx - popf - je c5done - -c5fail: xorw %bp, %bp -c5done: movb $6, %al - movb %bl, %ah - outw %ax, %dx - ret - -cirrus5_md: - .byte 0x14, 0x19, 0x84 - .byte 0x54, 0x2b, 0x84 - .byte 0 - .ascii "Cirrus Logic 54XX" - .byte 0 - -# Cirrus Logic 64XX -- no known extra modes, but must be identified, because -# it's misidentified by the Ahead test. -cirrus6_test: - movw $0x3ce, %dx - movb $0x0a, %al - call inidx - movb %al, %bl # BL=backup - movw $0xce0a, %ax - call tstidx - orb %al, %al - jne c2fail - - movw $0xec0a, %ax - call tstidx - cmpb $0x01, %al - jne c2fail - - movb $0xaa, %al - call inidx # 4X, 5X, 7X and 8X are valid 64XX chip ID's. - shrb $4, %al - subb $4, %al - jz c6done - - decb %al - jz c6done - - subb $2, %al - jz c6done - - decb %al - jz c6done - -c2fail: xorw %bp, %bp -c6done: movb $0x0a, %al - movb %bl, %ah - outw %ax, %dx - ret - -cirrus6_md: - .byte 0 - .ascii "Cirrus Logic 64XX" - .byte 0 - -# Everex / Trident -everex_test: - movw $0x7000, %ax - xorw %bx, %bx - int $0x10 - cmpb $0x70, %al - jne noevrx - - shrw $4, %dx - cmpw $0x678, %dx - je evtrid - - cmpw $0x236, %dx - jne evrxok - -evtrid: leaw trident_md, %bp -evrxok: ret - -noevrx: xorw %bp, %bp - ret - -everex_md: - .byte 0x03, 0x22, 0x50 - .byte 0x04, 0x3c, 0x50 - .byte 0x07, 0x2b, 0x64 - .byte 0x08, 0x4b, 0x64 - .byte 0x0a, 0x19, 0x84 - .byte 0x0b, 0x2c, 0x84 - .byte 0x16, 0x1e, 0x50 - .byte 0x18, 0x1b, 0x64 - .byte 0x21, 0x40, 0xa0 - .byte 0x40, 0x1e, 0x84 - .byte 0 - .ascii "Everex/Trident" - .byte 0 - -# Genoa. -genoa_test: - leaw idgenoa, %si # Check Genoa 'clues' - xorw %ax, %ax - movb %es:(0x37), %al - movw %ax, %di - movw $0x04, %cx - decw %si - decw %di -l1: incw %si - incw %di - movb (%si), %al - testb %al, %al - jz l2 - - cmpb %es:(%di), %al -l2: loope l1 - orw %cx, %cx - je isgen - - xorw %bp, %bp -isgen: ret - -idgenoa: .byte 0x77, 0x00, 0x99, 0x66 - -genoa_md: - .byte 0x58, 0x20, 0x50 - .byte 0x5a, 0x2a, 0x64 - .byte 0x60, 0x19, 0x84 - .byte 0x61, 0x1d, 0x84 - .byte 0x62, 0x20, 0x84 - .byte 0x63, 0x2c, 0x84 - .byte 0x64, 0x3c, 0x84 - .byte 0x6b, 0x4f, 0x64 - .byte 0x72, 0x3c, 0x50 - .byte 0x74, 0x42, 0x50 - .byte 0x78, 0x4b, 0x64 - .byte 0 - .ascii "Genoa" - .byte 0 - -# OAK -oak_test: - leaw idoakvga, %si - movw $0x08, %di - movw $0x08, %cx - repe - cmpsb - je isoak - - xorw %bp, %bp -isoak: ret - -idoakvga: .ascii "OAK VGA " - -oak_md: .byte 0x4e, 0x3c, 0x50 - .byte 0x4f, 0x3c, 0x84 - .byte 0x50, 0x19, 0x84 - .byte 0x51, 0x2b, 0x84 - .byte 0 - .ascii "OAK" - .byte 0 - -# WD Paradise. -paradise_test: - leaw idparadise, %si - movw $0x7d, %di - movw $0x04, %cx - repe - cmpsb - je ispara - - xorw %bp, %bp -ispara: ret - -idparadise: .ascii "VGA=" - -paradise_md: - .byte 0x41, 0x22, 0x50 - .byte 0x47, 0x1c, 0x84 - .byte 0x55, 0x19, 0x84 - .byte 0x54, 0x2c, 0x84 - .byte 0 - .ascii "Paradise" - .byte 0 - -# Trident. -trident_test: - movw $0x3c4, %dx - movb $0x0e, %al - outb %al, %dx - incw %dx - inb %dx, %al - xchgb %al, %ah - xorb %al, %al - outb %al, %dx - inb %dx, %al - xchgb %ah, %al - movb %al, %bl # Strange thing ... in the book this wasn't - andb $0x02, %bl # necessary but it worked on my card which - jz setb2 # is a trident. Without it the screen goes - # blurred ... - andb $0xfd, %al - jmp clrb2 - -setb2: orb $0x02, %al -clrb2: outb %al, %dx - andb $0x0f, %ah - cmpb $0x02, %ah - je istrid - - xorw %bp, %bp -istrid: ret - -trident_md: - .byte 0x50, 0x1e, 0x50 - .byte 0x51, 0x2b, 0x50 - .byte 0x52, 0x3c, 0x50 - .byte 0x57, 0x19, 0x84 - .byte 0x58, 0x1e, 0x84 - .byte 0x59, 0x2b, 0x84 - .byte 0x5a, 0x3c, 0x84 - .byte 0 - .ascii "Trident" - .byte 0 - -# Tseng. -tseng_test: - movw $0x3cd, %dx - inb %dx, %al # Could things be this simple ! :-) - movb %al, %bl - movb $0x55, %al - outb %al, %dx - inb %dx, %al - movb %al, %ah - movb %bl, %al - outb %al, %dx - cmpb $0x55, %ah - je istsen - -isnot: xorw %bp, %bp -istsen: ret - -tseng_md: - .byte 0x26, 0x3c, 0x50 - .byte 0x2a, 0x28, 0x64 - .byte 0x23, 0x19, 0x84 - .byte 0x24, 0x1c, 0x84 - .byte 0x22, 0x2c, 0x84 - .byte 0x21, 0x3c, 0x84 - .byte 0 - .ascii "Tseng" - .byte 0 - -# Video7. -video7_test: - movw $0x3cc, %dx - inb %dx, %al - movw $0x3b4, %dx - andb $0x01, %al - jz even7 - - movw $0x3d4, %dx -even7: movb $0x0c, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bl - movb $0x55, %al - outb %al, %dx - inb %dx, %al - decw %dx - movb $0x1f, %al - outb %al, %dx - incw %dx - inb %dx, %al - movb %al, %bh - decw %dx - movb $0x0c, %al - outb %al, %dx - incw %dx - movb %bl, %al - outb %al, %dx - movb $0x55, %al - xorb $0xea, %al - cmpb %bh, %al - jne isnot - - movb $VIDEO_FIRST_V7>>8, svga_prefix # Use special mode switching - ret - -video7_md: - .byte 0x40, 0x2b, 0x50 - .byte 0x43, 0x3c, 0x50 - .byte 0x44, 0x3c, 0x64 - .byte 0x41, 0x19, 0x84 - .byte 0x42, 0x2c, 0x84 - .byte 0x45, 0x1c, 0x84 - .byte 0 - .ascii "Video 7" - .byte 0 - -# Realtek VGA -realtek_test: - leaw idrtvga, %si - movw $0x45, %di - movw $0x0b, %cx - repe - cmpsb - je isrt - - xorw %bp, %bp -isrt: ret - -idrtvga: .ascii "REALTEK VGA" - -realtek_md: - .byte 0x1a, 0x3c, 0x50 - .byte 0x1b, 0x19, 0x84 - .byte 0x1c, 0x1e, 0x84 - .byte 0x1d, 0x2b, 0x84 - .byte 0x1e, 0x3c, 0x84 - .byte 0 - .ascii "REALTEK" - .byte 0 - -#endif /* CONFIG_VIDEO_SVGA */ - -# User-defined local mode table (VGA only) -#ifdef CONFIG_VIDEO_LOCAL -local_modes: - leaw local_mode_table, %si -locm1: lodsw - orw %ax, %ax - jz locm2 - - stosw - movsw - jmp locm1 - -locm2: ret - -# This is the table of local video modes which can be supplied manually -# by the user. Each entry consists of mode ID (word) and dimensions -# (byte for column count and another byte for row count). These modes -# are placed before all SVGA and VESA modes and override them if table -# compacting is enabled. The table must end with a zero word followed -# by NUL-terminated video adapter name. -local_mode_table: - .word 0x0100 # Example: 40x25 - .byte 25,40 - .word 0 - .ascii "Local" - .byte 0 -#endif /* CONFIG_VIDEO_LOCAL */ - -# Read a key and return the ASCII code in al, scan code in ah -getkey: xorb %ah, %ah - int $0x16 - ret - -# Read a key with a timeout of 30 seconds. -# The hardware clock is used to get the time. -getkt: call gettime - addb $30, %al # Wait 30 seconds - cmpb $60, %al - jl lminute - - subb $60, %al -lminute: - movb %al, %cl -again: movb $0x01, %ah - int $0x16 - jnz getkey # key pressed, so get it - - call gettime - cmpb %cl, %al - jne again - - movb $0x20, %al # timeout, return `space' - ret - -# Flush the keyboard buffer -flush: movb $0x01, %ah - int $0x16 - jz empty - - xorb %ah, %ah - int $0x16 - jmp flush - -empty: ret - -# Print hexadecimal number. -prthw: pushw %ax - movb %ah, %al - call prthb - popw %ax -prthb: pushw %ax - shrb $4, %al - call prthn - popw %ax - andb $0x0f, %al -prthn: cmpb $0x0a, %al - jc prth1 - - addb $0x07, %al -prth1: addb $0x30, %al - jmp prtchr - -# Print decimal number in al -prtdec: pushw %ax - pushw %cx - xorb %ah, %ah - movb $0x0a, %cl - idivb %cl - cmpb $0x09, %al - jbe lt100 - - call prtdec - jmp skip10 - -lt100: addb $0x30, %al - call prtchr -skip10: movb %ah, %al - addb $0x30, %al - call prtchr - popw %cx - popw %ax - ret - -store_edid: -#ifdef CONFIG_FIRMWARE_EDID - pushw %es # just save all registers - pushw %ax - pushw %bx - pushw %cx - pushw %dx - pushw %di - - pushw %fs - popw %es - - movl $0x13131313, %eax # memset block with 0x13 - movw $32, %cx - movw $0x140, %di - cld - rep - stosl - - cmpw $0x0200, vbe_version # only do EDID on >= VBE2.0 - jl no_edid - - pushw %es # save ES - xorw %di, %di # Report Capability - pushw %di - popw %es # ES:DI must be 0:0 - movw $0x4f15, %ax - xorw %bx, %bx - xorw %cx, %cx - int $0x10 - popw %es # restore ES - - cmpb $0x00, %ah # call successful - jne no_edid - - cmpb $0x4f, %al # function supported - jne no_edid - - movw $0x4f15, %ax # do VBE/DDC - movw $0x01, %bx - movw $0x00, %cx - movw $0x00, %dx - movw $0x140, %di - int $0x10 - -no_edid: - popw %di # restore all registers - popw %dx - popw %cx - popw %bx - popw %ax - popw %es -#endif - ret - -# VIDEO_SELECT-only variables -mt_end: .word 0 # End of video mode table if built -edit_buf: .space 6 # Line editor buffer -card_name: .word 0 # Pointer to adapter name -scanning: .byte 0 # Performing mode scan -do_restore: .byte 0 # Screen contents altered during mode change -svga_prefix: .byte VIDEO_FIRST_BIOS>>8 # Default prefix for BIOS modes -graphic_mode: .byte 0 # Graphic mode with a linear frame buffer -dac_size: .byte 6 # DAC bit depth -vbe_version: .word 0 # VBE bios version - -# Status messages -keymsg: .ascii "Press <RETURN> to see video modes available, " - .ascii "<SPACE> to continue or wait 30 secs" - .byte 0x0d, 0x0a, 0 - -listhdr: .byte 0x0d, 0x0a - .ascii "Mode: COLSxROWS:" - -crlft: .byte 0x0d, 0x0a, 0 - -prompt: .byte 0x0d, 0x0a - .asciz "Enter mode number or `scan': " - -unknt: .asciz "Unknown mode ID. Try again." - -badmdt: .ascii "You passed an undefined mode number." - .byte 0x0d, 0x0a, 0 - -vesaer: .ascii "Error: Scanning of VESA modes failed. Please " - .ascii "report to <mj@ucw.cz>." - .byte 0x0d, 0x0a, 0 - -old_name: .asciz "CGA/MDA/HGA" - -ega_name: .asciz "EGA" - -svga_name: .ascii " " - -vga_name: .asciz "VGA" - -vesa_name: .asciz "VESA" - -name_bann: .asciz "Video adapter: " -#endif /* CONFIG_VIDEO_SELECT */ - -# Other variables: -adapter: .byte 0 # Video adapter: 0=CGA/MDA/HGA,1=EGA,2=VGA -video_segment: .word 0xb800 # Video memory segment -force_size: .word 0 # Use this size instead of the one in BIOS vars diff --git a/arch/i386/boot/video.c b/arch/i386/boot/video.c new file mode 100644 index 000000000000..3bb3573cd6a1 --- /dev/null +++ b/arch/i386/boot/video.c @@ -0,0 +1,456 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/video.c + * + * Select video mode + */ + +#include "boot.h" +#include "video.h" +#include "vesa.h" + +/* + * Mode list variables + */ +static struct card_info cards[]; /* List of cards to probe for */ + +/* + * Common variables + */ +int adapter; /* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */ +u16 video_segment; +int force_x, force_y; /* Don't query the BIOS for cols/rows */ + +int do_restore = 0; /* Screen contents changed during mode flip */ +int graphic_mode; /* Graphic mode with linear frame buffer */ + +static void store_cursor_position(void) +{ + u16 curpos; + u16 ax, bx; + + ax = 0x0300; + bx = 0; + asm(INT10 + : "=d" (curpos), "+a" (ax), "+b" (bx) + : : "ecx", "esi", "edi"); + + boot_params.screen_info.orig_x = curpos; + boot_params.screen_info.orig_y = curpos >> 8; +} + +static void store_video_mode(void) +{ + u16 ax, page; + + /* N.B.: the saving of the video page here is a bit silly, + since we pretty much assume page 0 everywhere. */ + ax = 0x0f00; + asm(INT10 + : "+a" (ax), "=b" (page) + : : "ecx", "edx", "esi", "edi"); + + /* Not all BIOSes are clean with respect to the top bit */ + boot_params.screen_info.orig_video_mode = ax & 0x7f; + boot_params.screen_info.orig_video_page = page; +} + +/* + * Store the video mode parameters for later usage by the kernel. + * This is done by asking the BIOS except for the rows/columns + * parameters in the default 80x25 mode -- these are set directly, + * because some very obscure BIOSes supply insane values. + */ +static void store_mode_params(void) +{ + u16 font_size; + int x, y; + + /* For graphics mode, it is up to the mode-setting driver + (currently only video-vesa.c) to store the parameters */ + if (graphic_mode) + return; + + store_cursor_position(); + store_video_mode(); + + if (boot_params.screen_info.orig_video_mode == 0x07) { + /* MDA, HGC, or VGA in monochrome mode */ + video_segment = 0xb000; + } else { + /* CGA, EGA, VGA and so forth */ + video_segment = 0xb800; + } + + set_fs(0); + font_size = rdfs16(0x485); /* Font size, BIOS area */ + boot_params.screen_info.orig_video_points = font_size; + + x = rdfs16(0x44a); + y = (adapter == ADAPTER_CGA) ? 25 : rdfs8(0x484)+1; + + if (force_x) + x = force_x; + if (force_y) + y = force_y; + + boot_params.screen_info.orig_video_cols = x; + boot_params.screen_info.orig_video_lines = y; +} + +/* Probe the video drivers and have them generate their mode lists. */ +static void probe_cards(int unsafe) +{ + struct card_info *card; + static u8 probed[2]; + + if (probed[unsafe]) + return; + + probed[unsafe] = 1; + + for (card = video_cards; card < video_cards_end; card++) { + if (card->unsafe == unsafe) { + if (card->probe) + card->nmodes = card->probe(); + else + card->nmodes = 0; + } + } +} + +/* Test if a mode is defined */ +int mode_defined(u16 mode) +{ + struct card_info *card; + struct mode_info *mi; + int i; + + for (card = video_cards; card < video_cards_end; card++) { + mi = card->modes; + for (i = 0; i < card->nmodes; i++, mi++) { + if (mi->mode == mode) + return 1; + } + } + + return 0; +} + +/* Set mode (without recalc) */ +static int raw_set_mode(u16 mode) +{ + int nmode, i; + struct card_info *card; + struct mode_info *mi; + + /* Drop the recalc bit if set */ + mode &= ~VIDEO_RECALC; + + /* Scan for mode based on fixed ID, position, or resolution */ + nmode = 0; + for (card = video_cards; card < video_cards_end; card++) { + mi = card->modes; + for (i = 0; i < card->nmodes; i++, mi++) { + int visible = mi->x || mi->y; + + if ((mode == nmode && visible) || + mode == mi->mode || + mode == (mi->y << 8)+mi->x) + return card->set_mode(mi); + + if (visible) + nmode++; + } + } + + /* Nothing found? Is it an "exceptional" (unprobed) mode? */ + for (card = video_cards; card < video_cards_end; card++) { + if (mode >= card->xmode_first && + mode < card->xmode_first+card->xmode_n) { + struct mode_info mix; + mix.mode = mode; + mix.x = mix.y = 0; + return card->set_mode(&mix); + } + } + + /* Otherwise, failure... */ + return -1; +} + +/* + * Recalculate the vertical video cutoff (hack!) + */ +static void vga_recalc_vertical(void) +{ + unsigned int font_size, rows; + u16 crtc; + u8 ov; + + set_fs(0); + font_size = rdfs8(0x485); /* BIOS: font size (pixels) */ + rows = force_y ? force_y : rdfs8(0x484)+1; /* Text rows */ + + rows *= font_size; /* Visible scan lines */ + rows--; /* ... minus one */ + + crtc = vga_crtc(); + + out_idx((u8)rows, crtc, 0x12); /* Lower height register */ + ov = in_idx(crtc, 0x07); /* Overflow register */ + ov &= 0xbd; + ov |= (rows >> (8-1)) & 0x02; + ov |= (rows >> (9-6)) & 0x40; + out_idx(ov, crtc, 0x07); +} + +/* Set mode (with recalc if specified) */ +static int set_mode(u16 mode) +{ + int rv; + + /* Very special mode numbers... */ + if (mode == VIDEO_CURRENT_MODE) + return 0; /* Nothing to do... */ + else if (mode == NORMAL_VGA) + mode = VIDEO_80x25; + else if (mode == EXTENDED_VGA) + mode = VIDEO_8POINT; + + rv = raw_set_mode(mode); + if (rv) + return rv; + + if (mode & VIDEO_RECALC) + vga_recalc_vertical(); + + return 0; +} + +static unsigned int get_entry(void) +{ + char entry_buf[4]; + int i, len = 0; + int key; + unsigned int v; + + do { + key = getchar(); + + if (key == '\b') { + if (len > 0) { + puts("\b \b"); + len--; + } + } else if ((key >= '0' && key <= '9') || + (key >= 'A' && key <= 'Z') || + (key >= 'a' && key <= 'z')) { + if (len < sizeof entry_buf) { + entry_buf[len++] = key; + putchar(key); + } + } + } while (key != '\r'); + putchar('\n'); + + if (len == 0) + return VIDEO_CURRENT_MODE; /* Default */ + + v = 0; + for (i = 0; i < len; i++) { + v <<= 4; + key = entry_buf[i] | 0x20; + v += (key > '9') ? key-'a'+10 : key-'0'; + } + + return v; +} + +static void display_menu(void) +{ + struct card_info *card; + struct mode_info *mi; + char ch; + int i; + + puts("Mode: COLSxROWS:\n"); + + ch = '0'; + for (card = video_cards; card < video_cards_end; card++) { + mi = card->modes; + for (i = 0; i < card->nmodes; i++, mi++) { + int visible = mi->x && mi->y; + u16 mode_id = mi->mode ? mi->mode : + (mi->y << 8)+mi->x; + + if (!visible) + continue; /* Hidden mode */ + + printf("%c %04X %3dx%-3d %s\n", + ch, mode_id, mi->x, mi->y, card->card_name); + + if (ch == '9') + ch = 'a'; + else if (ch == 'z' || ch == ' ') + ch = ' '; /* Out of keys... */ + else + ch++; + } + } +} + +#define H(x) ((x)-'a'+10) +#define SCAN ((H('s')<<12)+(H('c')<<8)+(H('a')<<4)+H('n')) + +static unsigned int mode_menu(void) +{ + int key; + unsigned int sel; + + puts("Press <ENTER> to see video modes available, " + "<SPACE> to continue, or wait 30 sec\n"); + + kbd_flush(); + while (1) { + key = getchar_timeout(); + if (key == ' ' || key == 0) + return VIDEO_CURRENT_MODE; /* Default */ + if (key == '\r') + break; + putchar('\a'); /* Beep! */ + } + + + for (;;) { + display_menu(); + + puts("Enter a video mode or \"scan\" to scan for " + "additional modes: "); + sel = get_entry(); + if (sel != SCAN) + return sel; + + probe_cards(1); + } +} + +#ifdef CONFIG_VIDEO_RETAIN +/* Save screen content to the heap */ +struct saved_screen { + int x, y; + int curx, cury; + u16 *data; +} saved; + +static void save_screen(void) +{ + /* Should be called after store_mode_params() */ + saved.x = boot_params.screen_info.orig_video_cols; + saved.y = boot_params.screen_info.orig_video_lines; + saved.curx = boot_params.screen_info.orig_x; + saved.cury = boot_params.screen_info.orig_y; + + if (heap_free() < saved.x*saved.y*sizeof(u16)+512) + return; /* Not enough heap to save the screen */ + + saved.data = GET_HEAP(u16, saved.x*saved.y); + + set_fs(video_segment); + copy_from_fs(saved.data, 0, saved.x*saved.y*sizeof(u16)); +} + +static void restore_screen(void) +{ + /* Should be called after store_mode_params() */ + int xs = boot_params.screen_info.orig_video_cols; + int ys = boot_params.screen_info.orig_video_lines; + int y; + addr_t dst = 0; + u16 *src = saved.data; + u16 ax, bx, dx; + + if (graphic_mode) + return; /* Can't restore onto a graphic mode */ + + if (!src) + return; /* No saved screen contents */ + + /* Restore screen contents */ + + set_fs(video_segment); + for (y = 0; y < ys; y++) { + int npad; + + if (y < saved.y) { + int copy = (xs < saved.x) ? xs : saved.x; + copy_to_fs(dst, src, copy*sizeof(u16)); + dst += copy*sizeof(u16); + src += saved.x; + npad = (xs < saved.x) ? 0 : xs-saved.x; + } else { + npad = xs; + } + + /* Writes "npad" blank characters to + video_segment:dst and advances dst */ + asm volatile("pushw %%es ; " + "movw %2,%%es ; " + "shrw %%cx ; " + "jnc 1f ; " + "stosw \n\t" + "1: rep;stosl ; " + "popw %%es" + : "+D" (dst), "+c" (npad) + : "bdSm" (video_segment), + "a" (0x07200720)); + } + + /* Restore cursor position */ + ax = 0x0200; /* Set cursor position */ + bx = 0; /* Page number (<< 8) */ + dx = (saved.cury << 8)+saved.curx; + asm volatile(INT10 + : "+a" (ax), "+b" (bx), "+d" (dx) + : : "ecx", "esi", "edi"); +} +#else +#define save_screen() ((void)0) +#define restore_screen() ((void)0) +#endif + +void set_video(void) +{ + u16 mode = boot_params.hdr.vid_mode; + + RESET_HEAP(); + + store_mode_params(); + save_screen(); + probe_cards(0); + + for (;;) { + if (mode == ASK_VGA) + mode = mode_menu(); + + if (!set_mode(mode)) + break; + + printf("Undefined video mode number: %x\n", mode); + mode = ASK_VGA; + } + vesa_store_edid(); + store_mode_params(); + + if (do_restore) + restore_screen(); +} diff --git a/arch/i386/boot/video.h b/arch/i386/boot/video.h new file mode 100644 index 000000000000..29eca1710b2c --- /dev/null +++ b/arch/i386/boot/video.h @@ -0,0 +1,145 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/video.h + * + * Header file for the real-mode video probing code + */ + +#ifndef BOOT_VIDEO_H +#define BOOT_VIDEO_H + +#include <linux/types.h> + +/* Enable autodetection of SVGA adapters and modes. */ +#undef CONFIG_VIDEO_SVGA + +/* Enable autodetection of VESA modes */ +#define CONFIG_VIDEO_VESA + +/* Retain screen contents when switching modes */ +#define CONFIG_VIDEO_RETAIN + +/* Force 400 scan lines for standard modes (hack to fix bad BIOS behaviour */ +#undef CONFIG_VIDEO_400_HACK + +/* This code uses an extended set of video mode numbers. These include: + * Aliases for standard modes + * NORMAL_VGA (-1) + * EXTENDED_VGA (-2) + * ASK_VGA (-3) + * Video modes numbered by menu position -- NOT RECOMMENDED because of lack + * of compatibility when extending the table. These are between 0x00 and 0xff. + */ +#define VIDEO_FIRST_MENU 0x0000 + +/* Standard BIOS video modes (BIOS number + 0x0100) */ +#define VIDEO_FIRST_BIOS 0x0100 + +/* VESA BIOS video modes (VESA number + 0x0200) */ +#define VIDEO_FIRST_VESA 0x0200 + +/* Video7 special modes (BIOS number + 0x0900) */ +#define VIDEO_FIRST_V7 0x0900 + +/* Special video modes */ +#define VIDEO_FIRST_SPECIAL 0x0f00 +#define VIDEO_80x25 0x0f00 +#define VIDEO_8POINT 0x0f01 +#define VIDEO_80x43 0x0f02 +#define VIDEO_80x28 0x0f03 +#define VIDEO_CURRENT_MODE 0x0f04 +#define VIDEO_80x30 0x0f05 +#define VIDEO_80x34 0x0f06 +#define VIDEO_80x60 0x0f07 +#define VIDEO_GFX_HACK 0x0f08 +#define VIDEO_LAST_SPECIAL 0x0f09 + +/* Video modes given by resolution */ +#define VIDEO_FIRST_RESOLUTION 0x1000 + +/* The "recalculate timings" flag */ +#define VIDEO_RECALC 0x8000 + +/* Define DO_STORE according to CONFIG_VIDEO_RETAIN */ +#ifdef CONFIG_VIDEO_RETAIN +void store_screen(void); +#define DO_STORE() store_screen() +#else +#define DO_STORE() ((void)0) +#endif /* CONFIG_VIDEO_RETAIN */ + +/* + * Mode table structures + */ + +struct mode_info { + u16 mode; /* Mode number (vga= style) */ + u8 x, y; /* Width, height */ +}; + +struct card_info { + const char *card_name; + int (*set_mode)(struct mode_info *mode); + int (*probe)(void); + struct mode_info *modes; + int nmodes; /* Number of probed modes so far */ + int unsafe; /* Probing is unsafe, only do after "scan" */ + u16 xmode_first; /* Unprobed modes to try to call anyway */ + u16 xmode_n; /* Size of unprobed mode range */ +}; + +#define __videocard struct card_info __attribute__((section(".videocards"))) +extern struct card_info video_cards[], video_cards_end[]; + +int mode_defined(u16 mode); /* video.c */ + +/* Basic video information */ +#define ADAPTER_CGA 0 /* CGA/MDA/HGC */ +#define ADAPTER_EGA 1 +#define ADAPTER_VGA 2 + +extern int adapter; +extern u16 video_segment; +extern int force_x, force_y; /* Don't query the BIOS for cols/rows */ +extern int do_restore; /* Restore screen contents */ +extern int graphic_mode; /* Graphics mode with linear frame buffer */ + +/* + * int $0x10 is notorious for touching registers it shouldn't. + * gcc doesn't like %ebp being clobbered, so define it as a push/pop + * sequence here. + */ +#define INT10 "pushl %%ebp; int $0x10; popl %%ebp" + +/* Accessing VGA indexed registers */ +static inline u8 in_idx(u16 port, u8 index) +{ + outb(index, port); + return inb(port+1); +} + +static inline void out_idx(u8 v, u16 port, u8 index) +{ + outw(index+(v << 8), port); +} + +/* Writes a value to an indexed port and then reads the port again */ +static inline u8 tst_idx(u8 v, u16 port, u8 index) +{ + out_idx(port, index, v); + return in_idx(port, index); +} + +/* Get the I/O port of the VGA CRTC */ +u16 vga_crtc(void); /* video-vga.c */ + +#endif /* BOOT_VIDEO_H */ diff --git a/arch/i386/boot/voyager.c b/arch/i386/boot/voyager.c new file mode 100644 index 000000000000..9221614d0db8 --- /dev/null +++ b/arch/i386/boot/voyager.c @@ -0,0 +1,46 @@ +/* -*- linux-c -*- ------------------------------------------------------- * + * + * Copyright (C) 1991, 1992 Linus Torvalds + * Copyright 2007 rPath, Inc. - All Rights Reserved + * + * This file is part of the Linux kernel, and is made available under + * the terms of the GNU General Public License version 2. + * + * ----------------------------------------------------------------------- */ + +/* + * arch/i386/boot/voyager.c + * + * Get the Voyager config information + */ + +#include "boot.h" + +#ifdef CONFIG_X86_VOYAGER + +int query_voyager(void) +{ + u8 err; + u16 es, di; + /* Abuse the apm_bios_info area for this */ + u8 *data_ptr = (u8 *)&boot_params.apm_bios_info; + + data_ptr[0] = 0xff; /* Flag on config not found(?) */ + + asm("pushw %%es ; " + "int $0x15 ; " + "setc %0 ; " + "movw %%es, %1 ; " + "popw %%es" + : "=qm" (err), "=rm" (es), "=D" (di) + : "a" (0xffc0)); + + if (err) + return -1; /* Not Voyager */ + + set_fs(es); + copy_from_fs(data_ptr, di, 7); /* Table is 7 bytes apparently */ + return 0; +} + +#endif /* CONFIG_X86_VOYAGER */ diff --git a/arch/i386/kernel/cpu/Makefile b/arch/i386/kernel/cpu/Makefile index 74f27a463db0..0b6a8551e9e2 100644 --- a/arch/i386/kernel/cpu/Makefile +++ b/arch/i386/kernel/cpu/Makefile @@ -8,7 +8,7 @@ obj-y += amd.o obj-y += cyrix.o obj-y += centaur.o obj-y += transmeta.o -obj-y += intel.o intel_cacheinfo.o +obj-y += intel.o intel_cacheinfo.o addon_cpuid_features.o obj-y += rise.o obj-y += nexgen.o obj-y += umc.o diff --git a/arch/i386/kernel/cpu/addon_cpuid_features.c b/arch/i386/kernel/cpu/addon_cpuid_features.c new file mode 100644 index 000000000000..3e91d3ee26ec --- /dev/null +++ b/arch/i386/kernel/cpu/addon_cpuid_features.c @@ -0,0 +1,50 @@ + +/* + * Routines to indentify additional cpu features that are scattered in + * cpuid space. + */ + +#include <linux/cpu.h> + +#include <asm/processor.h> + +struct cpuid_bit { + u16 feature; + u8 reg; + u8 bit; + u32 level; +}; + +enum cpuid_regs { + CR_EAX = 0, + CR_ECX, + CR_EDX, + CR_EBX +}; + +void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) +{ + u32 max_level; + u32 regs[4]; + const struct cpuid_bit *cb; + + static const struct cpuid_bit cpuid_bits[] = { + { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006 }, + { 0, 0, 0, 0 } + }; + + for (cb = cpuid_bits; cb->feature; cb++) { + + /* Verify that the level is valid */ + max_level = cpuid_eax(cb->level & 0xffff0000); + if (max_level < cb->level || + max_level > (cb->level | 0xffff)) + continue; + + cpuid(cb->level, ®s[CR_EAX], ®s[CR_EBX], + ®s[CR_ECX], ®s[CR_EDX]); + + if (regs[cb->reg] & (1 << cb->bit)) + set_bit(cb->feature, c->x86_capability); + } +} diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c index 794d593c47eb..e5419a9dec88 100644 --- a/arch/i386/kernel/cpu/common.c +++ b/arch/i386/kernel/cpu/common.c @@ -353,6 +353,8 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 * c) if ( xlvl >= 0x80000004 ) get_model_name(c); /* Default name */ } + + init_scattered_cpuid_features(c); } early_intel_workaround(c); diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c index 89d91e6cc972..1e31b6caffb1 100644 --- a/arch/i386/kernel/cpu/proc.c +++ b/arch/i386/kernel/cpu/proc.c @@ -29,7 +29,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL, - NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", "3dnowext", "3dnow", + NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", + "3dnowext", "3dnow", /* Transmeta-defined */ "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, @@ -40,8 +41,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) /* Other (Linux-defined) */ "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", NULL, NULL, NULL, NULL, - "constant_tsc", "up", NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "constant_tsc", "up", NULL, "arch_perfmon", + "pebs", "bts", NULL, "sync_rdtsc", + "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Intel-defined (#2) */ @@ -57,9 +59,16 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* AMD-defined (#2) */ - "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8legacy", "abm", - "sse4a", "misalignsse", - "3dnowprefetch", "osvw", "ibs", NULL, NULL, NULL, NULL, NULL, + "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy", + "altmovcr8", "abm", "sse4a", + "misalignsse", "3dnowprefetch", + "osvw", "ibs", NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Auxiliary (Linux-defined) */ + "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; diff --git a/arch/i386/kernel/e820.c b/arch/i386/kernel/e820.c index 9645bb51f76a..fc822a46897a 100644 --- a/arch/i386/kernel/e820.c +++ b/arch/i386/kernel/e820.c @@ -734,7 +734,7 @@ void __init print_memory_map(char *who) case E820_NVS: printk("(ACPI NVS)\n"); break; - default: printk("type %lu\n", e820.map[i].type); + default: printk("type %u\n", e820.map[i].type); break; } } diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index 698c24fe482e..2d61e65eeb50 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -102,19 +102,10 @@ static unsigned int highmem_pages = -1; /* * Setup options */ -struct drive_info_struct { char dummy[32]; } drive_info; -#if defined(CONFIG_BLK_DEV_IDE) || defined(CONFIG_BLK_DEV_HD) || \ - defined(CONFIG_BLK_DEV_IDE_MODULE) || defined(CONFIG_BLK_DEV_HD_MODULE) -EXPORT_SYMBOL(drive_info); -#endif struct screen_info screen_info; EXPORT_SYMBOL(screen_info); struct apm_info apm_info; EXPORT_SYMBOL(apm_info); -struct sys_desc_table_struct { - unsigned short length; - unsigned char table[0]; -}; struct edid_info edid_info; EXPORT_SYMBOL_GPL(edid_info); struct ist_info ist_info; @@ -134,7 +125,7 @@ unsigned long saved_videomode; static char __initdata command_line[COMMAND_LINE_SIZE]; -unsigned char __initdata boot_params[PARAM_SIZE]; +struct boot_params __initdata boot_params; #if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE) struct edd edd; @@ -528,7 +519,6 @@ void __init setup_arch(char **cmdline_p) #endif ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV); - drive_info = DRIVE_INFO; screen_info = SCREEN_INFO; edid_info = EDID_INFO; apm_info.bios = APM_BIOS_INFO; diff --git a/arch/i386/kernel/verify_cpu.S b/arch/i386/kernel/verify_cpu.S deleted file mode 100644 index f1d1eacf4ab0..000000000000 --- a/arch/i386/kernel/verify_cpu.S +++ /dev/null @@ -1,94 +0,0 @@ -/* Check if CPU has some minimum CPUID bits - This runs in 16bit mode so that the caller can still use the BIOS - to output errors on the screen */ -#include <asm/cpufeature.h> -#include <asm/msr.h> - -verify_cpu: - pushfl # Save caller passed flags - pushl $0 # Kill any dangerous flags - popfl - -#if CONFIG_X86_MINIMUM_CPU_MODEL >= 4 - pushfl - pop %eax - orl $(1<<18),%eax # try setting AC - push %eax - popfl - pushfl - popl %eax - testl $(1<<18),%eax - jz bad -#endif -#if REQUIRED_MASK1 != 0 - pushfl # standard way to check for cpuid - popl %eax - movl %eax,%ebx - xorl $0x200000,%eax - pushl %eax - popfl - pushfl - popl %eax - cmpl %eax,%ebx - pushfl # standard way to check for cpuid - popl %eax - movl %eax,%ebx - xorl $0x200000,%eax - pushl %eax - popfl - pushfl - popl %eax - cmpl %eax,%ebx - jz bad # REQUIRED_MASK1 != 0 requires CPUID - - movl $0x0,%eax # See if cpuid 1 is implemented - cpuid - cmpl $0x1,%eax - jb bad # no cpuid 1 - -#if REQUIRED_MASK1 & NEED_CMPXCHG64 - /* Some VIA C3s need magic MSRs to enable CX64. Do this here */ - cmpl $0x746e6543,%ebx # Cent - jne 1f - cmpl $0x48727561,%edx # aurH - jne 1f - cmpl $0x736c7561,%ecx # auls - jne 1f - movl $1,%eax # check model - cpuid - movl %eax,%ebx - shr $8,%ebx - andl $0xf,%ebx - cmp $6,%ebx # check family == 6 - jne 1f - shr $4,%eax - andl $0xf,%eax - cmpl $6,%eax # check model >= 6 - jb 1f - # assume models >= 6 all support this MSR - movl $MSR_VIA_FCR,%ecx - rdmsr - orl $((1<<1)|(1<<7)),%eax # enable CMPXCHG64 and PGE - wrmsr -1: -#endif - movl $0x1,%eax # Does the cpu have what it takes - cpuid - -#if CONFIG_X86_MINIMUM_CPU_MODEL > 4 -#error add proper model checking here -#endif - - andl $REQUIRED_MASK1,%edx - xorl $REQUIRED_MASK1,%edx - jnz bad -#endif /* REQUIRED_MASK1 */ - - popfl - xor %eax,%eax - ret - -bad: - popfl - movl $1,%eax - ret diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index a00fabe2e4e0..5c863bcd5614 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -117,9 +117,9 @@ config MACH_JAZZ select ARC32 select ARCH_MAY_HAVE_PC_FDC select GENERIC_ISA_DMA - select I8253 select I8259 select ISA + select PCSPEAKER select SYS_HAS_CPU_R4X00 select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL @@ -347,9 +347,9 @@ config QEMU select DMA_COHERENT select GENERIC_ISA_DMA select HAVE_STD_PC_SERIAL_PORT - select I8253 select I8259 select ISA + select PCSPEAKER select SWAP_IO_SPACE select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_32BIT_KERNEL @@ -562,9 +562,9 @@ config SNI_RM select HW_HAS_EISA select HW_HAS_PCI select IRQ_CPU - select I8253 select I8259 select ISA + select PCSPEAKER select SWAP_IO_SPACE if CPU_BIG_ENDIAN select SYS_HAS_CPU_R4X00 select SYS_HAS_CPU_R5000 @@ -1404,6 +1404,19 @@ config MIPS_MT_SMTC_INSTANT_REPLAY it off), but ensures that IPIs are handled promptly even under heavy I/O interrupt load. +config MIPS_MT_SMTC_IM_BACKSTOP + bool "Use per-TC register bits as backstop for inhibited IM bits" + depends on MIPS_MT_SMTC + default y + help + To support multiple TC microthreads acting as "CPUs" within + a VPE, VPE-wide interrupt mask bits must be specially manipulated + during interrupt handling. To support legacy drivers and interrupt + controller management code, SMTC has a "backstop" to track and + if necessary restore the interrupt mask. This has some performance + impact on interrupt service overhead. Disable it only if you know + what you are doing. + config MIPS_VPE_LOADER_TOM bool "Load VPE program into memory hidden from linux" depends on MIPS_VPE_LOADER @@ -1851,7 +1864,7 @@ config MMU bool default y -config I8253 +config PCSPEAKER bool source "drivers/pcmcia/Kconfig" diff --git a/arch/mips/au1000/common/setup.c b/arch/mips/au1000/common/setup.c index 13fe187f35d6..fdf2b85a69c8 100644 --- a/arch/mips/au1000/common/setup.c +++ b/arch/mips/au1000/common/setup.c @@ -100,9 +100,6 @@ void __init plat_mem_setup(void) argptr = prom_getcmdline(); /* default panel */ /*strcat(argptr, " video=au1100fb:panel:Sharp_320x240_16");*/ -#ifdef CONFIG_MIPS_HYDROGEN3 - strcat(argptr, " video=au1100fb:panel:Hydrogen_3_NEC_panel_320x240,nohwcursor"); -#endif } #endif diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig index dd04eece9fd3..8a0b4ac5283d 100644 --- a/arch/mips/configs/jazz_defconfig +++ b/arch/mips/configs/jazz_defconfig @@ -241,7 +241,7 @@ CONFIG_DEFAULT_IOSCHED="anticipatory" # CONFIG_ISA=y CONFIG_MMU=y -CONFIG_I8253=y +CONFIG_PCSPEAKER=y # # PCCARD (PCMCIA/CardBus) support diff --git a/arch/mips/configs/qemu_defconfig b/arch/mips/configs/qemu_defconfig index 6cca105832ca..703de002e372 100644 --- a/arch/mips/configs/qemu_defconfig +++ b/arch/mips/configs/qemu_defconfig @@ -221,7 +221,7 @@ CONFIG_DEFAULT_IOSCHED="noop" # CONFIG_ISA=y CONFIG_MMU=y -CONFIG_I8253=y +CONFIG_PCSPEAKER=y # # PCCARD (PCMCIA/CardBus) support diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index 1a67a85aabbb..a5dc5cb97aae 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -251,7 +251,7 @@ CONFIG_PCI=y CONFIG_ISA=y # CONFIG_EISA is not set CONFIG_MMU=y -CONFIG_I8253=y +CONFIG_PCSPEAKER=y # # PCCARD (PCMCIA/CardBus) support diff --git a/arch/mips/configs/yosemite_defconfig b/arch/mips/configs/yosemite_defconfig index f1cdb12f7925..f342d8c887b8 100644 --- a/arch/mips/configs/yosemite_defconfig +++ b/arch/mips/configs/yosemite_defconfig @@ -592,8 +592,6 @@ CONFIG_LEGACY_PTY_COUNT=256 # CONFIG_WATCHDOG is not set # CONFIG_HW_RANDOM is not set # CONFIG_RTC is not set -CONFIG_GEN_RTC=y -CONFIG_GEN_RTC_X=y # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index 961594cb5214..5c8085b6d7ab 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -63,7 +63,7 @@ obj-$(CONFIG_PROC_FS) += proc.o obj-$(CONFIG_64BIT) += cpu-bugs64.o -obj-$(CONFIG_I8253) += i8253.o +obj-$(CONFIG_PCSPEAKER) += pcspeaker.o obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S index 686249c5c328..e29598ae939d 100644 --- a/arch/mips/kernel/entry.S +++ b/arch/mips/kernel/entry.S @@ -84,6 +84,7 @@ FEXPORT(restore_all) # restore full frame LONG_S sp, TI_REGS($28) jal deferred_smtc_ipi LONG_S s0, TI_REGS($28) +#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP /* Re-arm any temporarily masked interrupts not explicitly "acked" */ mfc0 v0, CP0_TCSTATUS ori v1, v0, TCSTATUS_IXMT @@ -110,6 +111,7 @@ FEXPORT(restore_all) # restore full frame _ehb xor t0, t0, t3 mtc0 t0, CP0_TCCONTEXT +#endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */ #endif /* CONFIG_MIPS_MT_SMTC */ .set noat RESTORE_TEMP diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S index 297bd56c2347..c0f19d638b98 100644 --- a/arch/mips/kernel/genex.S +++ b/arch/mips/kernel/genex.S @@ -243,9 +243,11 @@ NESTED(except_vec_vi_handler, 0, sp) */ mfc0 t1, CP0_STATUS and t0, a0, t1 +#ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP mfc0 t2, CP0_TCCONTEXT or t0, t0, t2 mtc0 t0, CP0_TCCONTEXT +#endif /* CONFIG_MIPS_MT_SMTC_IM_BACKSTOP */ xor t1, t1, t0 mtc0 t1, CP0_STATUS _ehb diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/pcspeaker.c index 475df6904219..475df6904219 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/pcspeaker.c diff --git a/arch/mips/kernel/r4k_switch.S b/arch/mips/kernel/r4k_switch.S index 06729596812f..d9bfae53c43f 100644 --- a/arch/mips/kernel/r4k_switch.S +++ b/arch/mips/kernel/r4k_switch.S @@ -85,12 +85,7 @@ move $28, a2 cpu_restore_nonscratch a1 -#if (_THREAD_SIZE - 32) < 0x10000 - PTR_ADDIU t0, $28, _THREAD_SIZE - 32 -#else - PTR_LI t0, _THREAD_SIZE - 32 - PTR_ADDU t0, $28 -#endif + PTR_ADDU t0, $28, _THREAD_SIZE - 32 set_saved_sp t0, t1, t2 #ifdef CONFIG_MIPS_MT_SMTC /* Read-modify-writes of Status must be atomic on a VPE */ diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 80ea4fa95bd9..5e9fa83c4ef0 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -373,7 +373,7 @@ asmlinkage void do_be(struct pt_regs *regs) action = MIPS_BE_FIXUP; if (board_be_handler) - action = board_be_handler(regs, fixup != 0); + action = board_be_handler(regs, fixup != NULL); switch (action) { case MIPS_BE_DISCARD: diff --git a/arch/mips/lib/dump_tlb.c b/arch/mips/lib/dump_tlb.c index 1a4db7dc77cb..465ff0ec85b9 100644 --- a/arch/mips/lib/dump_tlb.c +++ b/arch/mips/lib/dump_tlb.c @@ -10,6 +10,7 @@ #include <asm/mipsregs.h> #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/tlbdebug.h> static inline const char *msk2str(unsigned int mask) { diff --git a/arch/mips/lib/r3k_dump_tlb.c b/arch/mips/lib/r3k_dump_tlb.c index 52f87795ecc3..9cee907975ae 100644 --- a/arch/mips/lib/r3k_dump_tlb.c +++ b/arch/mips/lib/r3k_dump_tlb.c @@ -11,6 +11,7 @@ #include <asm/mipsregs.h> #include <asm/page.h> #include <asm/pgtable.h> +#include <asm/tlbdebug.h> extern int r3k_have_wired_reg; /* defined in tlb-r3k.c */ diff --git a/arch/mips/lib/uncached.c b/arch/mips/lib/uncached.c index 2388f7f3ffde..58d14f4d9349 100644 --- a/arch/mips/lib/uncached.c +++ b/arch/mips/lib/uncached.c @@ -12,6 +12,7 @@ #include <asm/addrspace.h> #include <asm/bug.h> +#include <asm/cacheflush.h> #ifndef CKSEG2 #define CKSEG2 CKSSEG diff --git a/arch/mips/mipssim/sim_int.c b/arch/mips/mipssim/sim_int.c index d86b37235cf6..5cbc3509ab52 100644 --- a/arch/mips/mipssim/sim_int.c +++ b/arch/mips/mipssim/sim_int.c @@ -77,7 +77,7 @@ asmlinkage void plat_irq_dispatch(void) irq = irq_ffs(pending); if (irq > 0) - do_IRQ(MIPSCPU_INT_BASE + irq); + do_IRQ(MIPS_CPU_IRQ_BASE + irq); else spurious_interrupt(); } diff --git a/arch/mips/mipssim/sim_setup.c b/arch/mips/mipssim/sim_setup.c index 3643582bdade..60e66906be65 100644 --- a/arch/mips/mipssim/sim_setup.c +++ b/arch/mips/mipssim/sim_setup.c @@ -84,7 +84,7 @@ static void __init serial_init(void) /* hardware int 4 - the serial int, is CPU int 6 but poll for now */ s.irq = 0; - s.uartclk = BASE_BAUD * 16; + s.uartclk = 1843200; s.flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST; s.iotype = UPIO_PORT; s.regshift = 0; diff --git a/arch/mips/mipssim/sim_time.c b/arch/mips/mipssim/sim_time.c index 874a18e8ac24..a0f5a5dca1b2 100644 --- a/arch/mips/mipssim/sim_time.c +++ b/arch/mips/mipssim/sim_time.c @@ -5,7 +5,6 @@ #include <linux/spinlock.h> #include <linux/interrupt.h> #include <linux/mc146818rtc.h> -#include <linux/mipsregs.h> #include <linux/smp.h> #include <linux/timex.h> diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c index 8108231f2e20..99d8f4fd3ff4 100644 --- a/arch/mips/pci/pci.c +++ b/arch/mips/pci/pci.c @@ -269,7 +269,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus) } for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) { - struct pci_dev *dev = pci_dev_b(ln); + dev = pci_dev_b(ln); if ((dev->class >> 8) != PCI_CLASS_BRIDGE_PCI) pcibios_fixup_device_resources(dev, bus); diff --git a/arch/mips/sibyte/swarm/time.c b/arch/mips/sibyte/swarm/time.c deleted file mode 100644 index 97c73c793c35..000000000000 --- a/arch/mips/sibyte/swarm/time.c +++ /dev/null @@ -1,244 +0,0 @@ -/* - * Copyright (C) 2000, 2001 Broadcom Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - */ - -/* - * Time routines for the swarm board. We pass all the hard stuff - * through to the sb1250 handling code. Only thing we really keep - * track of here is what time of day we think it is. And we don't - * really even do a good job of that... - */ - - -#include <linux/bcd.h> -#include <linux/init.h> -#include <linux/time.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <asm/system.h> -#include <asm/addrspace.h> -#include <asm/io.h> - -#include <asm/sibyte/sb1250.h> -#include <asm/sibyte/sb1250_regs.h> -#include <asm/sibyte/sb1250_smbus.h> - -static unsigned long long sec_bias = 0; -static unsigned int usec_bias = 0; - -/* Xicor 1241 definitions */ - -/* - * Register bits - */ - -#define X1241REG_SR_BAT 0x80 /* currently on battery power */ -#define X1241REG_SR_RWEL 0x04 /* r/w latch is enabled, can write RTC */ -#define X1241REG_SR_WEL 0x02 /* r/w latch is unlocked, can enable r/w now */ -#define X1241REG_SR_RTCF 0x01 /* clock failed */ -#define X1241REG_BL_BP2 0x80 /* block protect 2 */ -#define X1241REG_BL_BP1 0x40 /* block protect 1 */ -#define X1241REG_BL_BP0 0x20 /* block protect 0 */ -#define X1241REG_BL_WD1 0x10 -#define X1241REG_BL_WD0 0x08 -#define X1241REG_HR_MIL 0x80 /* military time format */ - -/* - * Register numbers - */ - -#define X1241REG_BL 0x10 /* block protect bits */ -#define X1241REG_INT 0x11 /* */ -#define X1241REG_SC 0x30 /* Seconds */ -#define X1241REG_MN 0x31 /* Minutes */ -#define X1241REG_HR 0x32 /* Hours */ -#define X1241REG_DT 0x33 /* Day of month */ -#define X1241REG_MO 0x34 /* Month */ -#define X1241REG_YR 0x35 /* Year */ -#define X1241REG_DW 0x36 /* Day of Week */ -#define X1241REG_Y2K 0x37 /* Year 2K */ -#define X1241REG_SR 0x3F /* Status register */ - -#define X1241_CCR_ADDRESS 0x6F - -#define SMB_CSR(reg) (IOADDR(A_SMB_REGISTER(1, reg))) - -static int xicor_read(uint8_t addr) -{ - while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY) - ; - - __raw_writeq((addr >> 8) & 0x7, SMB_CSR(R_SMB_CMD)); - __raw_writeq(addr & 0xff, SMB_CSR(R_SMB_DATA)); - __raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR2BYTE, - SMB_CSR(R_SMB_START)); - - while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY) - ; - - __raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_RD1BYTE, - SMB_CSR(R_SMB_START)); - - while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY) - ; - - if (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) { - /* Clear error bit by writing a 1 */ - __raw_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS)); - return -1; - } - - return (__raw_readq(SMB_CSR(R_SMB_DATA)) & 0xff); -} - -static int xicor_write(uint8_t addr, int b) -{ - while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY) - ; - - __raw_writeq(addr, SMB_CSR(R_SMB_CMD)); - __raw_writeq((addr & 0xff) | ((b & 0xff) << 8), SMB_CSR(R_SMB_DATA)); - __raw_writeq(V_SMB_ADDR(X1241_CCR_ADDRESS) | V_SMB_TT_WR3BYTE, - SMB_CSR(R_SMB_START)); - - while (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_BUSY) - ; - - if (__raw_readq(SMB_CSR(R_SMB_STATUS)) & M_SMB_ERROR) { - /* Clear error bit by writing a 1 */ - __raw_writeq(M_SMB_ERROR, SMB_CSR(R_SMB_STATUS)); - return -1; - } else { - return 0; - } -} - -/* - * In order to set the CMOS clock precisely, set_rtc_mmss has to be - * called 500 ms after the second nowtime has started, because when - * nowtime is written into the registers of the CMOS clock, it will - * jump to the next second precisely 500 ms later. Check the Motorola - * MC146818A or Dallas DS12887 data sheet for details. - * - * BUG: This routine does not handle hour overflow properly; it just - * sets the minutes. Usually you'll only notice that after reboot! - */ -int set_rtc_mmss(unsigned long nowtime) -{ - int retval = 0; - int real_seconds, real_minutes, cmos_minutes; - - cmos_minutes = xicor_read(X1241REG_MN); - cmos_minutes = BCD2BIN(cmos_minutes); - - /* - * since we're only adjusting minutes and seconds, - * don't interfere with hour overflow. This avoids - * messing with unknown time zones but requires your - * RTC not to be off by more than 15 minutes - */ - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) - real_minutes += 30; /* correct for half hour time zone */ - real_minutes %= 60; - - /* unlock writes to the CCR */ - xicor_write(X1241REG_SR, X1241REG_SR_WEL); - xicor_write(X1241REG_SR, X1241REG_SR_WEL | X1241REG_SR_RWEL); - - if (abs(real_minutes - cmos_minutes) < 30) { - real_seconds = BIN2BCD(real_seconds); - real_minutes = BIN2BCD(real_minutes); - xicor_write(X1241REG_SC, real_seconds); - xicor_write(X1241REG_MN, real_minutes); - } else { - printk(KERN_WARNING - "set_rtc_mmss: can't update from %d to %d\n", - cmos_minutes, real_minutes); - retval = -1; - } - - xicor_write(X1241REG_SR, 0); - - printk("set_rtc_mmss: %02d:%02d\n", real_minutes, real_seconds); - - return retval; -} - -static unsigned long __init get_swarm_time(void) -{ - unsigned int year, mon, day, hour, min, sec, y2k; - - sec = xicor_read(X1241REG_SC); - min = xicor_read(X1241REG_MN); - hour = xicor_read(X1241REG_HR); - - if (hour & X1241REG_HR_MIL) { - hour &= 0x3f; - } else { - if (hour & 0x20) - hour = (hour & 0xf) + 0x12; - } - - sec = BCD2BIN(sec); - min = BCD2BIN(min); - hour = BCD2BIN(hour); - - day = xicor_read(X1241REG_DT); - mon = xicor_read(X1241REG_MO); - year = xicor_read(X1241REG_YR); - y2k = xicor_read(X1241REG_Y2K); - - day = BCD2BIN(day); - mon = BCD2BIN(mon); - year = BCD2BIN(year); - y2k = BCD2BIN(y2k); - - year += (y2k * 100); - - return mktime(year, mon, day, hour, min, sec); -} - -/* - * Bring up the timer at 100 Hz. - */ -void __init swarm_time_init(void) -{ - unsigned int flags; - int status; - - /* Set up the scd general purpose timer 0 to cpu 0 */ - sb1250_time_init(); - - /* Establish communication with the Xicor 1241 RTC */ - /* XXXKW how do I share the SMBus with the I2C subsystem? */ - - __raw_writeq(K_SMB_FREQ_400KHZ, SMB_CSR(R_SMB_FREQ)); - __raw_writeq(0, SMB_CSR(R_SMB_CONTROL)); - - if ((status = xicor_read(X1241REG_SR_RTCF)) < 0) { - printk("x1241: couldn't detect on SWARM SMBus 1\n"); - } else { - if (status & X1241REG_SR_RTCF) - printk("x1241: battery failed -- time is probably wrong\n"); - write_seqlock_irqsave(&xtime_lock, flags); - xtime.tv_sec = get_swarm_time(); - xtime.tv_nsec = 0; - write_sequnlock_irqrestore(&xtime_lock, flags); - } -} diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c index 6850a29defcd..acc9ba76c1a9 100644 --- a/arch/mips/sni/a20r.c +++ b/arch/mips/sni/a20r.c @@ -87,8 +87,8 @@ static struct platform_device snirm_82596_pdev = { static struct resource snirm_53c710_rsrc[] = { { - .start = 0xb9000000, - .end = 0xb90fffff, + .start = 0x19000000, + .end = 0x190fffff, .flags = IORESOURCE_MEM }, { @@ -106,8 +106,8 @@ static struct platform_device snirm_53c710_pdev = { static struct resource sc26xx_rsrc[] = { { - .start = 0xbc070000, - .end = 0xbc0700ff, + .start = 0x1c070000, + .end = 0x1c0700ff, .flags = IORESOURCE_MEM }, { diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c index 4bfda020fdc7..28a11d8605ce 100644 --- a/arch/mips/sni/rm200.c +++ b/arch/mips/sni/rm200.c @@ -88,8 +88,8 @@ static struct platform_device snirm_82596_rm200_pdev = { static struct resource snirm_53c710_rm200_rsrc[] = { { - .start = 0xb9000000, - .end = 0xb90fffff, + .start = 0x19000000, + .end = 0x190fffff, .flags = IORESOURCE_MEM }, { diff --git a/arch/mips/vr41xx/common/Makefile b/arch/mips/vr41xx/common/Makefile index f842783acd86..d0d84ec8d63d 100644 --- a/arch/mips/vr41xx/common/Makefile +++ b/arch/mips/vr41xx/common/Makefile @@ -2,4 +2,4 @@ # Makefile for common code of the NEC VR4100 series. # -obj-y += bcu.o cmu.o icu.o init.o irq.o pmu.o type.o +obj-y += bcu.o cmu.o giu.o icu.o init.o irq.o pmu.o rtc.o siu.o type.o diff --git a/arch/mips/vr41xx/common/giu.c b/arch/mips/vr41xx/common/giu.c new file mode 100644 index 000000000000..d21f6f2d22a3 --- /dev/null +++ b/arch/mips/vr41xx/common/giu.c @@ -0,0 +1,122 @@ +/* + * NEC VR4100 series GIU platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> + +#include <asm/cpu.h> +#include <asm/vr41xx/giu.h> +#include <asm/vr41xx/irq.h> + +static struct resource giu_50pins_pullupdown_resource[] __initdata = { + { + .start = 0x0b000100, + .end = 0x0b00011f, + .flags = IORESOURCE_MEM, + }, + { + .start = 0x0b0002e0, + .end = 0x0b0002e3, + .flags = IORESOURCE_MEM, + }, + { + .start = GIUINT_IRQ, + .end = GIUINT_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource giu_36pins_resource[] __initdata = { + { + .start = 0x0f000140, + .end = 0x0f00015f, + .flags = IORESOURCE_MEM, + }, + { + .start = GIUINT_IRQ, + .end = GIUINT_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource giu_48pins_resource[] __initdata = { + { + .start = 0x0f000140, + .end = 0x0f000167, + .flags = IORESOURCE_MEM, + }, + { + .start = GIUINT_IRQ, + .end = GIUINT_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __init vr41xx_giu_add(void) +{ + struct platform_device *pdev; + struct resource *res; + unsigned int num; + int retval; + + pdev = platform_device_alloc("GIU", -1); + if (!pdev) + return -ENOMEM; + + switch (current_cpu_data.cputype) { + case CPU_VR4111: + case CPU_VR4121: + pdev->id = GPIO_50PINS_PULLUPDOWN; + res = giu_50pins_pullupdown_resource; + num = ARRAY_SIZE(giu_50pins_pullupdown_resource); + break; + case CPU_VR4122: + case CPU_VR4131: + pdev->id = GPIO_36PINS; + res = giu_36pins_resource; + num = ARRAY_SIZE(giu_36pins_resource); + break; + case CPU_VR4133: + pdev->id = GPIO_48PINS_EDGE_SELECT; + res = giu_48pins_resource; + num = ARRAY_SIZE(giu_48pins_resource); + break; + default: + retval = -ENODEV; + goto err_free_device; + } + + retval = platform_device_add_resources(pdev, res, num); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(vr41xx_giu_add); diff --git a/arch/mips/vr41xx/common/rtc.c b/arch/mips/vr41xx/common/rtc.c new file mode 100644 index 000000000000..cce605b3d688 --- /dev/null +++ b/arch/mips/vr41xx/common/rtc.c @@ -0,0 +1,117 @@ +/* + * NEC VR4100 series RTC platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> + +#include <asm/cpu.h> +#include <asm/vr41xx/irq.h> + +static struct resource rtc_type1_resource[] __initdata = { + { + .start = 0x0b0000c0, + .end = 0x0b0000df, + .flags = IORESOURCE_MEM, + }, + { + .start = 0x0b0001c0, + .end = 0x0b0001df, + .flags = IORESOURCE_MEM, + }, + { + .start = ELAPSEDTIME_IRQ, + .end = ELAPSEDTIME_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = RTCLONG1_IRQ, + .end = RTCLONG1_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource rtc_type2_resource[] __initdata = { + { + .start = 0x0f000100, + .end = 0x0f00011f, + .flags = IORESOURCE_MEM, + }, + { + .start = 0x0f000120, + .end = 0x0f00013f, + .flags = IORESOURCE_MEM, + }, + { + .start = ELAPSEDTIME_IRQ, + .end = ELAPSEDTIME_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = RTCLONG1_IRQ, + .end = RTCLONG1_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __init vr41xx_rtc_add(void) +{ + struct platform_device *pdev; + struct resource *res; + unsigned int num; + int retval; + + pdev = platform_device_alloc("RTC", -1); + if (!pdev) + return -ENOMEM; + + switch (current_cpu_data.cputype) { + case CPU_VR4111: + case CPU_VR4121: + res = rtc_type1_resource; + num = ARRAY_SIZE(rtc_type1_resource); + break; + case CPU_VR4122: + case CPU_VR4131: + case CPU_VR4133: + res = rtc_type2_resource; + num = ARRAY_SIZE(rtc_type2_resource); + break; + default: + retval = -ENODEV; + goto err_free_device; + } + + retval = platform_device_add_resources(pdev, res, num); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(vr41xx_rtc_add); diff --git a/arch/mips/vr41xx/common/siu.c b/arch/mips/vr41xx/common/siu.c new file mode 100644 index 000000000000..a1e774142163 --- /dev/null +++ b/arch/mips/vr41xx/common/siu.c @@ -0,0 +1,120 @@ +/* + * NEC VR4100 series SIU platform device. + * + * Copyright (C) 2007 Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/ioport.h> +#include <linux/platform_device.h> +#include <linux/serial_core.h> + +#include <asm/cpu.h> +#include <asm/vr41xx/siu.h> + +static unsigned int siu_type1_ports[SIU_PORTS_MAX] __initdata = { + PORT_VR41XX_SIU, + PORT_UNKNOWN, +}; + +static struct resource siu_type1_resource[] __initdata = { + { + .start = 0x0c000000, + .end = 0x0c00000a, + .flags = IORESOURCE_MEM, + }, + { + .start = SIU_IRQ, + .end = SIU_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static unsigned int siu_type2_ports[SIU_PORTS_MAX] __initdata = { + PORT_VR41XX_SIU, + PORT_VR41XX_DSIU, +}; + +static struct resource siu_type2_resource[] __initdata = { + { + .start = 0x0f000800, + .end = 0x0f00080a, + .flags = IORESOURCE_MEM, + }, + { + .start = 0x0f000820, + .end = 0x0f000829, + .flags = IORESOURCE_MEM, + }, + { + .start = SIU_IRQ, + .end = SIU_IRQ, + .flags = IORESOURCE_IRQ, + }, + { + .start = DSIU_IRQ, + .end = DSIU_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static int __init vr41xx_siu_add(void) +{ + struct platform_device *pdev; + struct resource *res; + unsigned int num; + int retval; + + pdev = platform_device_alloc("SIU", -1); + if (!pdev) + return -ENOMEM; + + switch (current_cpu_data.cputype) { + case CPU_VR4111: + case CPU_VR4121: + pdev->dev.platform_data = siu_type1_ports; + res = siu_type1_resource; + num = ARRAY_SIZE(siu_type1_resource); + break; + case CPU_VR4122: + case CPU_VR4131: + case CPU_VR4133: + pdev->dev.platform_data = siu_type2_ports; + res = siu_type2_resource; + num = ARRAY_SIZE(siu_type2_resource); + break; + default: + retval = -ENODEV; + goto err_free_device; + } + + retval = platform_device_add_resources(pdev, res, num); + if (retval) + goto err_free_device; + + retval = platform_device_add(pdev); + if (retval) + goto err_free_device; + + return 0; + +err_free_device: + platform_device_put(pdev); + + return retval; +} +device_initcall(vr41xx_siu_add); diff --git a/arch/ppc/8260_io/enet.c b/arch/ppc/8260_io/enet.c index 4c0a7d732f69..615b6583d9b0 100644 --- a/arch/ppc/8260_io/enet.c +++ b/arch/ppc/8260_io/enet.c @@ -477,9 +477,9 @@ for (;;) { } else { skb_put(skb,pkt_len-4); /* Make room */ - eth_copy_and_sum(skb, + skb_copy_to_linear_data(skb, (unsigned char *)__va(bdp->cbd_bufaddr), - pkt_len-4, 0); + pkt_len-4); skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); } diff --git a/arch/ppc/8260_io/fcc_enet.c b/arch/ppc/8260_io/fcc_enet.c index cab395da25da..6f3ed6a72e0b 100644 --- a/arch/ppc/8260_io/fcc_enet.c +++ b/arch/ppc/8260_io/fcc_enet.c @@ -734,9 +734,9 @@ for (;;) { } else { skb_put(skb,pkt_len); /* Make room */ - eth_copy_and_sum(skb, + skb_copy_to_linear_data(skb, (unsigned char *)__va(bdp->cbd_bufaddr), - pkt_len, 0); + pkt_len); skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); } diff --git a/arch/ppc/8xx_io/enet.c b/arch/ppc/8xx_io/enet.c index e58288e14369..703d47eee436 100644 --- a/arch/ppc/8xx_io/enet.c +++ b/arch/ppc/8xx_io/enet.c @@ -506,9 +506,9 @@ for (;;) { } else { skb_put(skb,pkt_len-4); /* Make room */ - eth_copy_and_sum(skb, + skb_copy_to_linear_data(skb, cep->rx_vaddr[bdp - cep->rx_bd_base], - pkt_len-4, 0); + pkt_len-4); skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); } diff --git a/arch/ppc/8xx_io/fec.c b/arch/ppc/8xx_io/fec.c index d38335d2d710..0288279be9aa 100644 --- a/arch/ppc/8xx_io/fec.c +++ b/arch/ppc/8xx_io/fec.c @@ -725,7 +725,7 @@ while (!(bdp->cbd_sc & BD_ENET_RX_EMPTY)) { fep->stats.rx_dropped++; } else { skb_put(skb,pkt_len-4); /* Make room */ - eth_copy_and_sum(skb, data, pkt_len-4, 0); + skb_copy_to_linear_data(skb, data, pkt_len-4); skb->protocol=eth_type_trans(skb,dev); netif_rx(skb); } diff --git a/arch/x86_64/Kconfig b/arch/x86_64/Kconfig index 5ce94430c019..8bdd25ac1542 100644 --- a/arch/x86_64/Kconfig +++ b/arch/x86_64/Kconfig @@ -427,6 +427,10 @@ config NR_CPUS This is purely to save memory - each supported CPU requires memory in the static kernel configuration. +config PHYSICAL_ALIGN + hex + default "0x200000" + config HOTPLUG_CPU bool "Support for suspend on SMP and hot-pluggable CPUs (EXPERIMENTAL)" depends on SMP && HOTPLUG && EXPERIMENTAL diff --git a/arch/x86_64/boot/Makefile b/arch/x86_64/boot/Makefile index ee6f6505f95f..67096389de1f 100644 --- a/arch/x86_64/boot/Makefile +++ b/arch/x86_64/boot/Makefile @@ -1,135 +1,9 @@ # # arch/x86_64/boot/Makefile # -# This file is subject to the terms and conditions of the GNU General Public -# License. See the file "COPYING" in the main directory of this archive -# for more details. -# -# Copyright (C) 1994 by Linus Torvalds -# - -# ROOT_DEV specifies the default root-device when making the image. -# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case -# the default of FLOPPY is used by 'build'. - -ROOT_DEV := CURRENT - -# If you want to preset the SVGA mode, uncomment the next line and -# set SVGA_MODE to whatever number you want. -# Set it to -DSVGA_MODE=NORMAL_VGA if you just want the EGA/VGA mode. -# The number is the same as you would ordinarily press at bootup. - -SVGA_MODE := -DSVGA_MODE=NORMAL_VGA - -# If you want the RAM disk device, define this to be the size in blocks. - -#RAMDISK := -DRAMDISK=512 - -targets := vmlinux.bin bootsect bootsect.o \ - setup setup.o bzImage mtools.conf - -EXTRA_CFLAGS := -m32 - -hostprogs-y := tools/build -HOST_EXTRACFLAGS += $(LINUXINCLUDE) -subdir- := compressed/ #Let make clean descend in compressed/ -# --------------------------------------------------------------------------- - -$(obj)/bzImage: IMAGE_OFFSET := 0x100000 -$(obj)/bzImage: EXTRA_AFLAGS := $(SVGA_MODE) $(RAMDISK) -D__BIG_KERNEL__ -$(obj)/bzImage: BUILDFLAGS := -b - -quiet_cmd_image = BUILD $@ -cmd_image = $(obj)/tools/build $(BUILDFLAGS) $(obj)/bootsect $(obj)/setup \ - $(obj)/vmlinux.bin $(ROOT_DEV) > $@ - -$(obj)/bzImage: $(obj)/bootsect $(obj)/setup \ - $(obj)/vmlinux.bin $(obj)/tools/build FORCE - $(call if_changed,image) - @echo 'Kernel: $@ is ready' ' (#'`cat .version`')' - -$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE - $(call if_changed,objcopy) - -LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary -LDFLAGS_setup := -Ttext 0x0 -s --oformat binary -e begtext - -$(obj)/setup $(obj)/bootsect: %: %.o FORCE - $(call if_changed,ld) - -$(obj)/compressed/vmlinux: FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@ - -# Set this if you want to pass append arguments to the zdisk/fdimage/isoimage kernel -FDARGS = -# Set this if you want an initrd included with the zdisk/fdimage/isoimage kernel -FDINITRD = - -image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,) - -$(obj)/mtools.conf: $(src)/mtools.conf.in - sed -e 's|@OBJ@|$(obj)|g' < $< > $@ - -# This requires write access to /dev/fd0 -zdisk: $(BOOTIMAGE) $(obj)/mtools.conf - MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync - syslinux /dev/fd0 ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(obj)/mtools.conf mcopy - a:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) a:linux ; sync - -# These require being root or having syslinux 2.02 or higher installed -fdimage fdimage144: $(BOOTIMAGE) $(obj)/mtools.conf - dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440 - MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync - syslinux $(obj)/fdimage ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) v:linux ; sync - -fdimage288: $(BOOTIMAGE) $(obj)/mtools.conf - dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880 - MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync - syslinux $(obj)/fdimage ; sync - echo '$(image_cmdline)' | \ - MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \ - fi - MTOOLSRC=$(obj)/mtools.conf mcopy $(BOOTIMAGE) w:linux ; sync - -isoimage: $(BOOTIMAGE) - -rm -rf $(obj)/isoimage - mkdir $(obj)/isoimage - for i in lib lib64 share end ; do \ - if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \ - cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \ - break ; \ - fi ; \ - if [ $$i = end ] ; then exit 1 ; fi ; \ - done - cp $(BOOTIMAGE) $(obj)/isoimage/linux - echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg - if [ -f '$(FDINITRD)' ] ; then \ - cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \ - fi - mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \ - -no-emul-boot -boot-load-size 4 -boot-info-table \ - $(obj)/isoimage - rm -rf $(obj)/isoimage - -zlilo: $(BOOTIMAGE) - if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi - if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi - cat $(BOOTIMAGE) > $(INSTALL_PATH)/vmlinuz - cp System.map $(INSTALL_PATH)/ - if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi +# The actual boot code is shared with i386 including the Makefile. +# So tell kbuild that we fetch the code from i386 and include the +# Makefile from i386 too. -install: - sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" +src := arch/i386/boot +include $(src)/Makefile diff --git a/arch/x86_64/boot/bootsect.S b/arch/x86_64/boot/bootsect.S deleted file mode 100644 index 011b7a4993d4..000000000000 --- a/arch/x86_64/boot/bootsect.S +++ /dev/null @@ -1,98 +0,0 @@ -/* - * bootsect.S Copyright (C) 1991, 1992 Linus Torvalds - * - * modified by Drew Eckhardt - * modified by Bruce Evans (bde) - * modified by Chris Noe (May 1999) (as86 -> gas) - * gutted by H. Peter Anvin (Jan 2003) - * - * BIG FAT NOTE: We're in real mode using 64k segments. Therefore segment - * addresses must be multiplied by 16 to obtain their respective linear - * addresses. To avoid confusion, linear addresses are written using leading - * hex while segment addresses are written as segment:offset. - * - */ - -#include <asm/boot.h> - -SETUPSECTS = 4 /* default nr of setup-sectors */ -BOOTSEG = 0x07C0 /* original address of boot-sector */ -INITSEG = DEF_INITSEG /* we move boot here - out of the way */ -SETUPSEG = DEF_SETUPSEG /* setup starts here */ -SYSSEG = DEF_SYSSEG /* system loaded at 0x10000 (65536) */ -SYSSIZE = DEF_SYSSIZE /* system size: # of 16-byte clicks */ - /* to be loaded */ -ROOT_DEV = 0 /* ROOT_DEV is now written by "build" */ -SWAP_DEV = 0 /* SWAP_DEV is now written by "build" */ - -#ifndef SVGA_MODE -#define SVGA_MODE ASK_VGA -#endif - -#ifndef RAMDISK -#define RAMDISK 0 -#endif - -#ifndef ROOT_RDONLY -#define ROOT_RDONLY 1 -#endif - -.code16 -.text - -.global _start -_start: - - # Normalize the start address - jmpl $BOOTSEG, $start2 - -start2: - movw %cs, %ax - movw %ax, %ds - movw %ax, %es - movw %ax, %ss - movw $0x7c00, %sp - sti - cld - - movw $bugger_off_msg, %si - -msg_loop: - lodsb - andb %al, %al - jz die - movb $0xe, %ah - movw $7, %bx - int $0x10 - jmp msg_loop - -die: - # Allow the user to press a key, then reboot - xorw %ax, %ax - int $0x16 - int $0x19 - - # int 0x19 should never return. In case it does anyway, - # invoke the BIOS reset code... - ljmp $0xf000,$0xfff0 - - -bugger_off_msg: - .ascii "Direct booting from floppy is no longer supported.\r\n" - .ascii "Please use a boot loader program instead.\r\n" - .ascii "\n" - .ascii "Remove disk and press any key to reboot . . .\r\n" - .byte 0 - - - # Kernel attributes; used by setup - - .org 497 -setup_sects: .byte SETUPSECTS -root_flags: .word ROOT_RDONLY -syssize: .word SYSSIZE -swap_dev: .word SWAP_DEV -ram_size: .word RAMDISK -vid_mode: .word SVGA_MODE -root_dev: .word ROOT_DEV -boot_flag: .word 0xAA55 diff --git a/arch/x86_64/boot/compressed/Makefile b/arch/x86_64/boot/compressed/Makefile index 705a3e33d7e1..c9f2da7496c1 100644 --- a/arch/x86_64/boot/compressed/Makefile +++ b/arch/x86_64/boot/compressed/Makefile @@ -7,11 +7,12 @@ # targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o -EXTRA_AFLAGS := -traditional -# cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with -# -m32 -CFLAGS := -m64 -D__KERNEL__ -Iinclude -O2 -fno-strict-aliasing -fPIC -mcmodel=small -fno-builtin +CFLAGS := -m64 -D__KERNEL__ $(LINUXINCLUDE) -O2 \ + -fno-strict-aliasing -fPIC -mcmodel=small \ + $(call cc-option, -ffreestanding) \ + $(call cc-option, -fno-stack-protector) +AFLAGS := $(CFLAGS) -D__ASSEMBLY__ LDFLAGS := -m elf_x86_64 LDFLAGS_vmlinux := -T diff --git a/arch/x86_64/boot/compressed/head.S b/arch/x86_64/boot/compressed/head.S index f9d5692a0106..1312bfaff306 100644 --- a/arch/x86_64/boot/compressed/head.S +++ b/arch/x86_64/boot/compressed/head.S @@ -46,10 +46,10 @@ startup_32: * at and where we were actually loaded at. This can only be done * with a short local call on x86. Nothing else will tell us what * address we are running at. The reserved chunk of the real-mode - * data at 0x34-0x3f are used as the stack for this calculation. - * Only 4 bytes are needed. + * data at 0x1e4 (defined as a scratch field) are used as the stack + * for this calculation. Only 4 bytes are needed. */ - leal 0x40(%esi), %esp + leal (0x1e4+4)(%esi), %esp call 1f 1: popl %ebp subl $1b, %ebp diff --git a/arch/x86_64/boot/install.sh b/arch/x86_64/boot/install.sh deleted file mode 100644 index baaa2369bdb8..000000000000 --- a/arch/x86_64/boot/install.sh +++ /dev/null @@ -1,2 +0,0 @@ -#!/bin/sh -. $srctree/arch/i386/boot/install.sh diff --git a/arch/x86_64/boot/mtools.conf.in b/arch/x86_64/boot/mtools.conf.in deleted file mode 100644 index efd6d2490c1d..000000000000 --- a/arch/x86_64/boot/mtools.conf.in +++ /dev/null @@ -1,17 +0,0 @@ -# -# mtools configuration file for "make (b)zdisk" -# - -# Actual floppy drive -drive a: - file="/dev/fd0" - -# 1.44 MB floppy disk image -drive v: - file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=18 filter - -# 2.88 MB floppy disk image (mostly for virtual uses) -drive w: - file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=36 filter - - diff --git a/arch/x86_64/boot/setup.S b/arch/x86_64/boot/setup.S deleted file mode 100644 index e9e33f949697..000000000000 --- a/arch/x86_64/boot/setup.S +++ /dev/null @@ -1,826 +0,0 @@ -/* - * setup.S Copyright (C) 1991, 1992 Linus Torvalds - * - * setup.s is responsible for getting the system data from the BIOS, - * and putting them into the appropriate places in system memory. - * both setup.s and system has been loaded by the bootblock. - * - * This code asks the bios for memory/disk/other parameters, and - * puts them in a "safe" place: 0x90000-0x901FF, ie where the - * boot-block used to be. It is then up to the protected mode - * system to read them from there before the area is overwritten - * for buffer-blocks. - * - * Move PS/2 aux init code to psaux.c - * (troyer@saifr00.cfsat.Honeywell.COM) 03Oct92 - * - * some changes and additional features by Christoph Niemann, - * March 1993/June 1994 (Christoph.Niemann@linux.org) - * - * add APM BIOS checking by Stephen Rothwell, May 1994 - * (sfr@canb.auug.org.au) - * - * High load stuff, initrd support and position independency - * by Hans Lermen & Werner Almesberger, February 1996 - * <lermen@elserv.ffm.fgan.de>, <almesber@lrc.epfl.ch> - * - * Video handling moved to video.S by Martin Mares, March 1996 - * <mj@k332.feld.cvut.cz> - * - * Extended memory detection scheme retwiddled by orc@pell.chi.il.us (david - * parsons) to avoid loadlin confusion, July 1997 - * - * Transcribed from Intel (as86) -> AT&T (gas) by Chris Noe, May 1999. - * <stiker@northlink.com> - * - * Fix to work around buggy BIOSes which don't use carry bit correctly - * and/or report extended memory in CX/DX for e801h memory size detection - * call. As a result the kernel got wrong figures. The int15/e801h docs - * from Ralf Brown interrupt list seem to indicate AX/BX should be used - * anyway. So to avoid breaking many machines (presumably there was a reason - * to orginally use CX/DX instead of AX/BX), we do a kludge to see - * if CX/DX have been changed in the e801 call and if so use AX/BX . - * Michael Miller, April 2001 <michaelm@mjmm.org> - * - * Added long mode checking and SSE force. March 2003, Andi Kleen. - */ - -#include <asm/segment.h> -#include <linux/utsrelease.h> -#include <linux/compile.h> -#include <asm/boot.h> -#include <asm/e820.h> -#include <asm/page.h> -#include <asm/setup.h> - -/* Signature words to ensure LILO loaded us right */ -#define SIG1 0xAA55 -#define SIG2 0x5A5A - -INITSEG = DEF_INITSEG # 0x9000, we move boot here, out of the way -SYSSEG = DEF_SYSSEG # 0x1000, system loaded at 0x10000 (65536). -SETUPSEG = DEF_SETUPSEG # 0x9020, this is the current segment - # ... and the former contents of CS - -DELTA_INITSEG = SETUPSEG - INITSEG # 0x0020 - -.code16 -.globl begtext, begdata, begbss, endtext, enddata, endbss - -.text -begtext: -.data -begdata: -.bss -begbss: -.text - -start: - jmp trampoline - -# This is the setup header, and it must start at %cs:2 (old 0x9020:2) - - .ascii "HdrS" # header signature - .word 0x0206 # header version number (>= 0x0105) - # or else old loadlin-1.5 will fail) -realmode_swtch: .word 0, 0 # default_switch, SETUPSEG -start_sys_seg: .word SYSSEG - .word kernel_version # pointing to kernel version string - # above section of header is compatible - # with loadlin-1.5 (header v1.5). Don't - # change it. - -type_of_loader: .byte 0 # = 0, old one (LILO, Loadlin, - # Bootlin, SYSLX, bootsect...) - # See Documentation/i386/boot.txt for - # assigned ids - -# flags, unused bits must be zero (RFU) bit within loadflags -loadflags: -LOADED_HIGH = 1 # If set, the kernel is loaded high -CAN_USE_HEAP = 0x80 # If set, the loader also has set - # heap_end_ptr to tell how much - # space behind setup.S can be used for - # heap purposes. - # Only the loader knows what is free -#ifndef __BIG_KERNEL__ - .byte 0 -#else - .byte LOADED_HIGH -#endif - -setup_move_size: .word 0x8000 # size to move, when setup is not - # loaded at 0x90000. We will move setup - # to 0x90000 then just before jumping - # into the kernel. However, only the - # loader knows how much data behind - # us also needs to be loaded. - -code32_start: # here loaders can put a different - # start address for 32-bit code. -#ifndef __BIG_KERNEL__ - .long 0x1000 # 0x1000 = default for zImage -#else - .long 0x100000 # 0x100000 = default for big kernel -#endif - -ramdisk_image: .long 0 # address of loaded ramdisk image - # Here the loader puts the 32-bit - # address where it loaded the image. - # This only will be read by the kernel. - -ramdisk_size: .long 0 # its size in bytes - -bootsect_kludge: - .long 0 # obsolete - -heap_end_ptr: .word modelist+1024 # (Header version 0x0201 or later) - # space from here (exclusive) down to - # end of setup code can be used by setup - # for local heap purposes. - -pad1: .word 0 -cmd_line_ptr: .long 0 # (Header version 0x0202 or later) - # If nonzero, a 32-bit pointer - # to the kernel command line. - # The command line should be - # located between the start of - # setup and the end of low - # memory (0xa0000), or it may - # get overwritten before it - # gets read. If this field is - # used, there is no longer - # anything magical about the - # 0x90000 segment; the setup - # can be located anywhere in - # low memory 0x10000 or higher. - -ramdisk_max: .long 0xffffffff -kernel_alignment: .long 0x200000 # physical addr alignment required for - # protected mode relocatable kernel -#ifdef CONFIG_RELOCATABLE -relocatable_kernel: .byte 1 -#else -relocatable_kernel: .byte 0 -#endif -pad2: .byte 0 -pad3: .word 0 - -cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line, - #added with boot protocol - #version 2.06 - -trampoline: call start_of_setup - .align 16 - # The offset at this point is 0x240 - .space (0xeff-0x240+1) # E820 & EDD space (ending at 0xeff) -# End of setup header ##################################################### - -start_of_setup: -# Bootlin depends on this being done early - movw $0x01500, %ax - movb $0x81, %dl - int $0x13 - -#ifdef SAFE_RESET_DISK_CONTROLLER -# Reset the disk controller. - movw $0x0000, %ax - movb $0x80, %dl - int $0x13 -#endif - -# Set %ds = %cs, we know that SETUPSEG = %cs at this point - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds -# Check signature at end of setup - cmpw $SIG1, setup_sig1 - jne bad_sig - - cmpw $SIG2, setup_sig2 - jne bad_sig - - jmp good_sig1 - -# Routine to print asciiz string at ds:si -prtstr: - lodsb - andb %al, %al - jz fin - - call prtchr - jmp prtstr - -fin: ret - -# Space printing -prtsp2: call prtspc # Print double space -prtspc: movb $0x20, %al # Print single space (note: fall-thru) - -prtchr: - pushw %ax - pushw %cx - movw $0007,%bx - movw $0x01, %cx - movb $0x0e, %ah - int $0x10 - popw %cx - popw %ax - ret - -beep: movb $0x07, %al - jmp prtchr - -no_sig_mess: .string "No setup signature found ..." - -good_sig1: - jmp good_sig - -# We now have to find the rest of the setup code/data -bad_sig: - movw %cs, %ax # SETUPSEG - subw $DELTA_INITSEG, %ax # INITSEG - movw %ax, %ds - xorb %bh, %bh - movb (497), %bl # get setup sect from bootsect - subw $4, %bx # LILO loads 4 sectors of setup - shlw $8, %bx # convert to words (1sect=2^8 words) - movw %bx, %cx - shrw $3, %bx # convert to segment - addw $SYSSEG, %bx - movw %bx, %cs:start_sys_seg -# Move rest of setup code/data to here - movw $2048, %di # four sectors loaded by LILO - subw %si, %si - movw %cs, %ax # aka SETUPSEG - movw %ax, %es - movw $SYSSEG, %ax - movw %ax, %ds - rep - movsw - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds - cmpw $SIG1, setup_sig1 - jne no_sig - - cmpw $SIG2, setup_sig2 - jne no_sig - - jmp good_sig - -no_sig: - lea no_sig_mess, %si - call prtstr - -no_sig_loop: - jmp no_sig_loop - -good_sig: - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %ds -# Check if an old loader tries to load a big-kernel - testb $LOADED_HIGH, %cs:loadflags # Do we have a big kernel? - jz loader_ok # No, no danger for old loaders. - - cmpb $0, %cs:type_of_loader # Do we have a loader that - # can deal with us? - jnz loader_ok # Yes, continue. - - pushw %cs # No, we have an old loader, - popw %ds # die. - lea loader_panic_mess, %si - call prtstr - - jmp no_sig_loop - -loader_panic_mess: .string "Wrong loader, giving up..." - -loader_ok: - /* check for long mode. */ - /* we have to do this before the VESA setup, otherwise the user - can't see the error message. */ - - pushw %ds - movw %cs,%ax - movw %ax,%ds - - call verify_cpu - testl %eax,%eax - jz sse_ok - -no_longmode: - call beep - lea long_mode_panic,%si - call prtstr -no_longmode_loop: - jmp no_longmode_loop -long_mode_panic: - .string "Your CPU does not support long mode. Use a 32bit distribution." - .byte 0 - -#include "../kernel/verify_cpu.S" -sse_ok: - popw %ds - -# tell BIOS we want to go to long mode - movl $0xec00,%eax # declare target operating mode - movl $2,%ebx # long mode - int $0x15 - -# Get memory size (extended mem, kB) - - xorl %eax, %eax - movl %eax, (0x1e0) -#ifndef STANDARD_MEMORY_BIOS_CALL - movb %al, (E820NR) -# Try three different memory detection schemes. First, try -# e820h, which lets us assemble a memory map, then try e801h, -# which returns a 32-bit memory size, and finally 88h, which -# returns 0-64m - -# method E820H: -# the memory map from hell. e820h returns memory classified into -# a whole bunch of different types, and allows memory holes and -# everything. We scan through this memory map and build a list -# of the first 32 memory areas, which we return at [E820MAP]. -# This is documented at http://www.acpi.info/, in the ACPI 2.0 specification. - -#define SMAP 0x534d4150 - -meme820: - xorl %ebx, %ebx # continuation counter - movw $E820MAP, %di # point into the whitelist - # so we can have the bios - # directly write into it. - -jmpe820: - movl $0x0000e820, %eax # e820, upper word zeroed - movl $SMAP, %edx # ascii 'SMAP' - movl $20, %ecx # size of the e820rec - pushw %ds # data record. - popw %es - int $0x15 # make the call - jc bail820 # fall to e801 if it fails - - cmpl $SMAP, %eax # check the return is `SMAP' - jne bail820 # fall to e801 if it fails - -# cmpl $1, 16(%di) # is this usable memory? -# jne again820 - - # If this is usable memory, we save it by simply advancing %di by - # sizeof(e820rec). - # -good820: - movb (E820NR), %al # up to 128 entries - cmpb $E820MAX, %al - jae bail820 - - incb (E820NR) - movw %di, %ax - addw $20, %ax - movw %ax, %di -again820: - cmpl $0, %ebx # check to see if - jne jmpe820 # %ebx is set to EOF -bail820: - - -# method E801H: -# memory size is in 1k chunksizes, to avoid confusing loadlin. -# we store the 0xe801 memory size in a completely different place, -# because it will most likely be longer than 16 bits. -# (use 1e0 because that's what Larry Augustine uses in his -# alternative new memory detection scheme, and it's sensible -# to write everything into the same place.) - -meme801: - stc # fix to work around buggy - xorw %cx,%cx # BIOSes which don't clear/set - xorw %dx,%dx # carry on pass/error of - # e801h memory size call - # or merely pass cx,dx though - # without changing them. - movw $0xe801, %ax - int $0x15 - jc mem88 - - cmpw $0x0, %cx # Kludge to handle BIOSes - jne e801usecxdx # which report their extended - cmpw $0x0, %dx # memory in AX/BX rather than - jne e801usecxdx # CX/DX. The spec I have read - movw %ax, %cx # seems to indicate AX/BX - movw %bx, %dx # are more reasonable anyway... - -e801usecxdx: - andl $0xffff, %edx # clear sign extend - shll $6, %edx # and go from 64k to 1k chunks - movl %edx, (0x1e0) # store extended memory size - andl $0xffff, %ecx # clear sign extend - addl %ecx, (0x1e0) # and add lower memory into - # total size. - -# Ye Olde Traditional Methode. Returns the memory size (up to 16mb or -# 64mb, depending on the bios) in ax. -mem88: - -#endif - movb $0x88, %ah - int $0x15 - movw %ax, (2) - -# Set the keyboard repeat rate to the max - movw $0x0305, %ax - xorw %bx, %bx - int $0x16 - -# Check for video adapter and its parameters and allow the -# user to browse video modes. - call video # NOTE: we need %ds pointing - # to bootsector - -# Get hd0 data... - xorw %ax, %ax - movw %ax, %ds - ldsw (4 * 0x41), %si - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - pushw %ax - movw %ax, %es - movw $0x0080, %di - movw $0x10, %cx - pushw %cx - cld - rep - movsb -# Get hd1 data... - xorw %ax, %ax - movw %ax, %ds - ldsw (4 * 0x46), %si - popw %cx - popw %es - movw $0x0090, %di - rep - movsb -# Check that there IS a hd1 :-) - movw $0x01500, %ax - movb $0x81, %dl - int $0x13 - jc no_disk1 - - cmpb $3, %ah - je is_disk1 - -no_disk1: - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %es - movw $0x0090, %di - movw $0x10, %cx - xorw %ax, %ax - cld - rep - stosb -is_disk1: - -# Check for PS/2 pointing device - movw %cs, %ax # aka SETUPSEG - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ax, %ds - movb $0, (0x1ff) # default is no pointing device - int $0x11 # int 0x11: equipment list - testb $0x04, %al # check if mouse installed - jz no_psmouse - - movb $0xAA, (0x1ff) # device present -no_psmouse: - -#include "../../i386/boot/edd.S" - -# Now we want to move to protected mode ... - cmpw $0, %cs:realmode_swtch - jz rmodeswtch_normal - - lcall *%cs:realmode_swtch - - jmp rmodeswtch_end - -rmodeswtch_normal: - pushw %cs - call default_switch - -rmodeswtch_end: -# we get the code32 start address and modify the below 'jmpi' -# (loader may have changed it) - movl %cs:code32_start, %eax - movl %eax, %cs:code32 - -# Now we move the system to its rightful place ... but we check if we have a -# big-kernel. In that case we *must* not move it ... - testb $LOADED_HIGH, %cs:loadflags - jz do_move0 # .. then we have a normal low - # loaded zImage - # .. or else we have a high - # loaded bzImage - jmp end_move # ... and we skip moving - -do_move0: - movw $0x100, %ax # start of destination segment - movw %cs, %bp # aka SETUPSEG - subw $DELTA_INITSEG, %bp # aka INITSEG - movw %cs:start_sys_seg, %bx # start of source segment - cld -do_move: - movw %ax, %es # destination segment - incb %ah # instead of add ax,#0x100 - movw %bx, %ds # source segment - addw $0x100, %bx - subw %di, %di - subw %si, %si - movw $0x800, %cx - rep - movsw - cmpw %bp, %bx # assume start_sys_seg > 0x200, - # so we will perhaps read one - # page more than needed, but - # never overwrite INITSEG - # because destination is a - # minimum one page below source - jb do_move - -end_move: -# then we load the segment descriptors - movw %cs, %ax # aka SETUPSEG - movw %ax, %ds - -# Check whether we need to be downward compatible with version <=201 - cmpl $0, cmd_line_ptr - jne end_move_self # loader uses version >=202 features - cmpb $0x20, type_of_loader - je end_move_self # bootsect loader, we know of it - -# Boot loader doesnt support boot protocol version 2.02. -# If we have our code not at 0x90000, we need to move it there now. -# We also then need to move the params behind it (commandline) -# Because we would overwrite the code on the current IP, we move -# it in two steps, jumping high after the first one. - movw %cs, %ax - cmpw $SETUPSEG, %ax - je end_move_self - - cli # make sure we really have - # interrupts disabled ! - # because after this the stack - # should not be used - subw $DELTA_INITSEG, %ax # aka INITSEG - movw %ss, %dx - cmpw %ax, %dx - jb move_self_1 - - addw $INITSEG, %dx - subw %ax, %dx # this will go into %ss after - # the move -move_self_1: - movw %ax, %ds - movw $INITSEG, %ax # real INITSEG - movw %ax, %es - movw %cs:setup_move_size, %cx - std # we have to move up, so we use - # direction down because the - # areas may overlap - movw %cx, %di - decw %di - movw %di, %si - subw $move_self_here+0x200, %cx - rep - movsb - ljmp $SETUPSEG, $move_self_here - -move_self_here: - movw $move_self_here+0x200, %cx - rep - movsb - movw $SETUPSEG, %ax - movw %ax, %ds - movw %dx, %ss -end_move_self: # now we are at the right place - lidt idt_48 # load idt with 0,0 - xorl %eax, %eax # Compute gdt_base - movw %ds, %ax # (Convert %ds:gdt to a linear ptr) - shll $4, %eax - addl $gdt, %eax - movl %eax, (gdt_48+2) - lgdt gdt_48 # load gdt with whatever is - # appropriate - -# that was painless, now we enable a20 - call empty_8042 - - movb $0xD1, %al # command write - outb %al, $0x64 - call empty_8042 - - movb $0xDF, %al # A20 on - outb %al, $0x60 - call empty_8042 - -# -# You must preserve the other bits here. Otherwise embarrasing things -# like laptops powering off on boot happen. Corrected version by Kira -# Brown from Linux 2.2 -# - inb $0x92, %al # - orb $02, %al # "fast A20" version - outb %al, $0x92 # some chips have only this - -# wait until a20 really *is* enabled; it can take a fair amount of -# time on certain systems; Toshiba Tecras are known to have this -# problem. The memory location used here (0x200) is the int 0x80 -# vector, which should be safe to use. - - xorw %ax, %ax # segment 0x0000 - movw %ax, %fs - decw %ax # segment 0xffff (HMA) - movw %ax, %gs -a20_wait: - incw %ax # unused memory location <0xfff0 - movw %ax, %fs:(0x200) # we use the "int 0x80" vector - cmpw %gs:(0x210), %ax # and its corresponding HMA addr - je a20_wait # loop until no longer aliased - -# make sure any possible coprocessor is properly reset.. - xorw %ax, %ax - outb %al, $0xf0 - call delay - - outb %al, $0xf1 - call delay - -# well, that went ok, I hope. Now we mask all interrupts - the rest -# is done in init_IRQ(). - movb $0xFF, %al # mask all interrupts for now - outb %al, $0xA1 - call delay - - movb $0xFB, %al # mask all irq's but irq2 which - outb %al, $0x21 # is cascaded - -# Well, that certainly wasn't fun :-(. Hopefully it works, and we don't -# need no steenking BIOS anyway (except for the initial loading :-). -# The BIOS-routine wants lots of unnecessary data, and it's less -# "interesting" anyway. This is how REAL programmers do it. -# -# Well, now's the time to actually move into protected mode. To make -# things as simple as possible, we do no register set-up or anything, -# we let the gnu-compiled 32-bit programs do that. We just jump to -# absolute address 0x1000 (or the loader supplied one), -# in 32-bit protected mode. -# -# Note that the short jump isn't strictly needed, although there are -# reasons why it might be a good idea. It won't hurt in any case. - movw $1, %ax # protected mode (PE) bit - lmsw %ax # This is it! - jmp flush_instr - -flush_instr: - xorw %bx, %bx # Flag to indicate a boot - xorl %esi, %esi # Pointer to real-mode code - movw %cs, %si - subw $DELTA_INITSEG, %si - shll $4, %esi # Convert to 32-bit pointer -# NOTE: For high loaded big kernels we need a -# jmpi 0x100000,__KERNEL_CS -# -# but we yet haven't reloaded the CS register, so the default size -# of the target offset still is 16 bit. -# However, using an operand prefix (0x66), the CPU will properly -# take our 48 bit far pointer. (INTeL 80386 Programmer's Reference -# Manual, Mixing 16-bit and 32-bit code, page 16-6) - - .byte 0x66, 0xea # prefix + jmpi-opcode -code32: .long 0x1000 # will be set to 0x100000 - # for big kernels - .word __KERNEL_CS - -# Here's a bunch of information about your current kernel.. -kernel_version: .ascii UTS_RELEASE - .ascii " (" - .ascii LINUX_COMPILE_BY - .ascii "@" - .ascii LINUX_COMPILE_HOST - .ascii ") " - .ascii UTS_VERSION - .byte 0 - -# This is the default real mode switch routine. -# to be called just before protected mode transition -default_switch: - cli # no interrupts allowed ! - movb $0x80, %al # disable NMI for bootup - # sequence - outb %al, $0x70 - lret - - -# This routine checks that the keyboard command queue is empty -# (after emptying the output buffers) -# -# Some machines have delusions that the keyboard buffer is always full -# with no keyboard attached... -# -# If there is no keyboard controller, we will usually get 0xff -# to all the reads. With each IO taking a microsecond and -# a timeout of 100,000 iterations, this can take about half a -# second ("delay" == outb to port 0x80). That should be ok, -# and should also be plenty of time for a real keyboard controller -# to empty. -# - -empty_8042: - pushl %ecx - movl $100000, %ecx - -empty_8042_loop: - decl %ecx - jz empty_8042_end_loop - - call delay - - inb $0x64, %al # 8042 status port - testb $1, %al # output buffer? - jz no_output - - call delay - inb $0x60, %al # read it - jmp empty_8042_loop - -no_output: - testb $2, %al # is input buffer full? - jnz empty_8042_loop # yes - loop -empty_8042_end_loop: - popl %ecx - ret - -# Read the cmos clock. Return the seconds in al -gettime: - pushw %cx - movb $0x02, %ah - int $0x1a - movb %dh, %al # %dh contains the seconds - andb $0x0f, %al - movb %dh, %ah - movb $0x04, %cl - shrb %cl, %ah - aad - popw %cx - ret - -# Delay is needed after doing I/O -delay: - outb %al,$0x80 - ret - -# Descriptor tables -gdt: - .word 0, 0, 0, 0 # dummy - - .word 0, 0, 0, 0 # unused - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9A00 # code read/exec - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) - - .word 0xFFFF # 4Gb - (0x100000*0x1000 = 4Gb) - .word 0 # base address = 0 - .word 0x9200 # data read/write - .word 0x00CF # granularity = 4096, 386 - # (+5th nibble of limit) -gdt_end: -idt_48: - .word 0 # idt limit = 0 - .word 0, 0 # idt base = 0L -gdt_48: - .word gdt_end-gdt-1 # gdt limit - .word 0, 0 # gdt base (filled in later) - -# Include video setup & detection code - -#include "../../i386/boot/video.S" - -# Setup signature -- must be last -setup_sig1: .word SIG1 -setup_sig2: .word SIG2 - -# After this point, there is some free space which is used by the video mode -# handling code to store the temporary mode table (not used by the kernel). - -modelist: - -.text -endtext: -.data -enddata: -.bss -endbss: diff --git a/arch/x86_64/boot/tools/build.c b/arch/x86_64/boot/tools/build.c deleted file mode 100644 index eae86691709a..000000000000 --- a/arch/x86_64/boot/tools/build.c +++ /dev/null @@ -1,185 +0,0 @@ -/* - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 1997 Martin Mares - */ - -/* - * This file builds a disk-image from three different files: - * - * - bootsect: compatibility mbr which prints an error message if - * someone tries to boot the kernel directly. - * - setup: 8086 machine code, sets up system parm - * - system: 80386 code for actual system - * - * It does some checking that all files are of the correct type, and - * just writes the result to stdout, removing headers and padding to - * the right amount. It also writes some system data to stderr. - */ - -/* - * Changes by tytso to allow root device specification - * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996 - * Cross compiling fixes by Gertjan van Wingerde, July 1996 - * Rewritten by Martin Mares, April 1997 - */ - -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <stdarg.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/sysmacros.h> -#include <unistd.h> -#include <fcntl.h> -#include <asm/boot.h> - -typedef unsigned char byte; -typedef unsigned short word; -typedef unsigned long u32; - -#define DEFAULT_MAJOR_ROOT 0 -#define DEFAULT_MINOR_ROOT 0 - -/* Minimal number of setup sectors (see also bootsect.S) */ -#define SETUP_SECTS 4 - -byte buf[1024]; -int fd; -int is_big_kernel; - -void die(const char * str, ...) -{ - va_list args; - va_start(args, str); - vfprintf(stderr, str, args); - fputc('\n', stderr); - exit(1); -} - -void file_open(const char *name) -{ - if ((fd = open(name, O_RDONLY, 0)) < 0) - die("Unable to open `%s': %m", name); -} - -void usage(void) -{ - die("Usage: build [-b] bootsect setup system [rootdev] [> image]"); -} - -int main(int argc, char ** argv) -{ - unsigned int i, c, sz, setup_sectors; - u32 sys_size; - byte major_root, minor_root; - struct stat sb; - - if (argc > 2 && !strcmp(argv[1], "-b")) - { - is_big_kernel = 1; - argc--, argv++; - } - if ((argc < 4) || (argc > 5)) - usage(); - if (argc > 4) { - if (!strcmp(argv[4], "CURRENT")) { - if (stat("/", &sb)) { - perror("/"); - die("Couldn't stat /"); - } - major_root = major(sb.st_dev); - minor_root = minor(sb.st_dev); - } else if (strcmp(argv[4], "FLOPPY")) { - if (stat(argv[4], &sb)) { - perror(argv[4]); - die("Couldn't stat root device."); - } - major_root = major(sb.st_rdev); - minor_root = minor(sb.st_rdev); - } else { - major_root = 0; - minor_root = 0; - } - } else { - major_root = DEFAULT_MAJOR_ROOT; - minor_root = DEFAULT_MINOR_ROOT; - } - fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root); - - file_open(argv[1]); - i = read(fd, buf, sizeof(buf)); - fprintf(stderr,"Boot sector %d bytes.\n",i); - if (i != 512) - die("Boot block must be exactly 512 bytes"); - if (buf[510] != 0x55 || buf[511] != 0xaa) - die("Boot block hasn't got boot flag (0xAA55)"); - buf[508] = minor_root; - buf[509] = major_root; - if (write(1, buf, 512) != 512) - die("Write call failed"); - close (fd); - - file_open(argv[2]); /* Copy the setup code */ - for (i=0 ; (c=read(fd, buf, sizeof(buf)))>0 ; i+=c ) - if (write(1, buf, c) != c) - die("Write call failed"); - if (c != 0) - die("read-error on `setup'"); - close (fd); - - setup_sectors = (i + 511) / 512; /* Pad unused space with zeros */ - /* for compatibility with ancient versions of LILO. */ - if (setup_sectors < SETUP_SECTS) - setup_sectors = SETUP_SECTS; - fprintf(stderr, "Setup is %d bytes.\n", i); - memset(buf, 0, sizeof(buf)); - while (i < setup_sectors * 512) { - c = setup_sectors * 512 - i; - if (c > sizeof(buf)) - c = sizeof(buf); - if (write(1, buf, c) != c) - die("Write call failed"); - i += c; - } - - file_open(argv[3]); - if (fstat (fd, &sb)) - die("Unable to stat `%s': %m", argv[3]); - sz = sb.st_size; - fprintf (stderr, "System is %d kB\n", sz/1024); - sys_size = (sz + 15) / 16; - if (!is_big_kernel && sys_size > DEF_SYSSIZE) - die("System is too big. Try using bzImage or modules."); - while (sz > 0) { - int l, n; - - l = (sz > sizeof(buf)) ? sizeof(buf) : sz; - if ((n=read(fd, buf, l)) != l) { - if (n < 0) - die("Error reading %s: %m", argv[3]); - else - die("%s: Unexpected EOF", argv[3]); - } - if (write(1, buf, l) != l) - die("Write failed"); - sz -= l; - } - close(fd); - - if (lseek(1, 497, SEEK_SET) != 497) /* Write sizes to the bootsector */ - die("Output: seek failed"); - buf[0] = setup_sectors; - if (write(1, buf, 1) != 1) - die("Write of setup sector count failed"); - if (lseek(1, 500, SEEK_SET) != 500) - die("Output: seek failed"); - buf[0] = (sys_size & 0xff); - buf[1] = ((sys_size >> 8) & 0xff); - buf[2] = ((sys_size >> 16) & 0xff); - buf[3] = ((sys_size >> 24) & 0xff); - if (write(1, buf, 4) != 4) - die("Write of image length failed"); - - return 0; /* Everything is OK */ -} diff --git a/arch/x86_64/kernel/Makefile b/arch/x86_64/kernel/Makefile index de1de8a2fd84..47f1dc30bf56 100644 --- a/arch/x86_64/kernel/Makefile +++ b/arch/x86_64/kernel/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_PCI) += early-quirks.o obj-y += topology.o obj-y += intel_cacheinfo.o +obj-y += addon_cpuid_features.o obj-y += pcspeaker.o CFLAGS_vsyscall.o := $(PROFILING) -g0 @@ -55,6 +56,7 @@ cpuid-$(subst m,y,$(CONFIG_X86_CPUID)) += ../../i386/kernel/cpuid.o topology-y += ../../i386/kernel/topology.o microcode-$(subst m,y,$(CONFIG_MICROCODE)) += ../../i386/kernel/microcode.o intel_cacheinfo-y += ../../i386/kernel/cpu/intel_cacheinfo.o +addon_cpuid_features-y += ../../i386/kernel/cpu/addon_cpuid_features.o quirks-y += ../../i386/kernel/quirks.o i8237-y += ../../i386/kernel/i8237.o msr-$(subst m,y,$(CONFIG_X86_MSR)) += ../../i386/kernel/msr.o diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index eb6524f3ac29..33ef718f8cb5 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -846,6 +846,8 @@ void __cpuinit identify_cpu(struct cpuinfo_x86 *c) c->x86_capability[2] = cpuid_edx(0x80860001); } + init_scattered_cpuid_features(c); + c->apicid = phys_pkg_id(0); /* @@ -931,7 +933,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", NULL, + "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", /* AMD-defined */ NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -947,10 +949,11 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Other (Linux-defined) */ - "cxmmx", NULL, "cyrix_arr", "centaur_mcr", NULL, - "constant_tsc", NULL, NULL, - "up", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", + NULL, NULL, NULL, NULL, + "constant_tsc", "up", NULL, "arch_perfmon", + "pebs", "bts", NULL, "sync_rdtsc", + "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Intel-defined (#2) */ @@ -961,7 +964,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) /* VIA/Cyrix/Centaur-defined */ NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, @@ -972,6 +975,12 @@ static int show_cpuinfo(struct seq_file *m, void *v) "osvw", "ibs", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + + /* Auxiliary (Linux-defined) */ + "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; static char *x86_power_flags[] = { "ts", /* temperature sensor */ diff --git a/arch/x86_64/kernel/verify_cpu.S b/arch/x86_64/kernel/verify_cpu.S index e035f5948199..45b6f8a975a1 100644 --- a/arch/x86_64/kernel/verify_cpu.S +++ b/arch/x86_64/kernel/verify_cpu.S @@ -37,20 +37,6 @@ verify_cpu: pushl $0 # Kill any dangerous flags popfl - /* minimum CPUID flags for x86-64 as defined by AMD */ -#define M(x) (1<<(x)) -#define M2(a,b) M(a)|M(b) -#define M4(a,b,c,d) M(a)|M(b)|M(c)|M(d) - -#define SSE_MASK \ - (M2(X86_FEATURE_XMM,X86_FEATURE_XMM2)) -#define REQUIRED_MASK1 \ - (M4(X86_FEATURE_FPU,X86_FEATURE_PSE,X86_FEATURE_TSC,X86_FEATURE_MSR)|\ - M4(X86_FEATURE_PAE,X86_FEATURE_CX8,X86_FEATURE_PGE,X86_FEATURE_CMOV)|\ - M(X86_FEATURE_FXSR)) -#define REQUIRED_MASK2 \ - (M(X86_FEATURE_LM - 32)) - pushfl # standard way to check for cpuid popl %eax movl %eax,%ebx @@ -79,8 +65,8 @@ verify_cpu: verify_cpu_noamd: movl $0x1,%eax # Does the cpu have what it takes cpuid - andl $REQUIRED_MASK1,%edx - xorl $REQUIRED_MASK1,%edx + andl $REQUIRED_MASK0,%edx + xorl $REQUIRED_MASK0,%edx jnz verify_cpu_no_longmode movl $0x80000000,%eax # See if extended cpuid is implemented @@ -90,8 +76,8 @@ verify_cpu_noamd: movl $0x80000001,%eax # Does the cpu have what it takes cpuid - andl $REQUIRED_MASK2,%edx - xorl $REQUIRED_MASK2,%edx + andl $REQUIRED_MASK1,%edx + xorl $REQUIRED_MASK1,%edx jnz verify_cpu_no_longmode verify_cpu_sse_test: |
